Disciplinary Warnings After Muldrow: Actual Employment Harm and Retaliatory Causation

1. Introduction

This decision addresses two recurring questions in employment litigation: when a disciplinary warning causes sufficient harm to support a discrimination claim, and what evidence connects workplace discipline to an earlier discrimination complaint.

Steven Epperson, a fifty-six-year-old corporate security specialist employed by The Hertz Corporation, alleged age discrimination and retaliation under the Age Discrimination in Employment Act (ADEA) and the Florida Civil Rights Act (FCRA). His claims centered on a “First and Final Warning” issued after an investigation into his confrontation with employees at a Hertz rental branch. Epperson maintained that the warning followed, and was connected to, his earlier complaint about his supervisor’s behavior and an age-related remark.

The Eleventh Circuit affirmed summary judgment for Hertz. Applying Muldrow v. City of St. Louis, it held that Epperson had not identified actual harm to an identifiable term or condition of employment resulting from the warning. His retaliation claim independently failed because the evidence did not establish a causal connection between his earlier complaint and the disciplinary decision.

The decision’s central distinction is between a lowered threshold of harm and the absence of harm altogether: discrimination plaintiffs need not demonstrate a significant employment disadvantage, but they must still identify an actual one.

2. Background and Procedural History

The complaint about Epperson’s supervisor

Hertz hired Epperson in August 2022. His supervisor, Julio Endara, mistakenly believed that Epperson had participated in discussions with regional manager Norm Ryan about employees’ pay structure and job status. According to Epperson, that belief caused their working relationship to deteriorate.

During a contentious telephone call in March 2023, Endara told Epperson that he would never be promoted, suggested that he seek employment elsewhere, and referred to his age and pension eligibility. Epperson initially understood the pension reference as a “police thing,” reflecting the men’s shared law-enforcement background and pension eligibility at age fifty.

Following additional incidents involving Endara’s profanity, Epperson reported his conduct to another manager on April 26 and to Ryan on May 1. Ryan investigated, substantiated one incident, and arranged a verbal correction and apology. Epperson accepted Endara’s apology, and Ryan closed the investigation.

The Oceanside incident and disciplinary investigation

On August 8, Epperson attempted to recover an overdue rental vehicle. After a disputed encounter with the customer, he went to Hertz’s Oceanside branch and confronted branch manager Zaria Quintero about instructions that, he believed, had endangered him.

Quintero and another employee, Selina Smith, described Epperson as aggressive and threatening. Both alleged that he pushed Quintero into an office. Epperson acknowledged being agitated but denied physical contact.

Hertz suspended Epperson with pay while human resources business partner Lexy Motes investigated. During the investigation, Epperson asserted that his suspension was retaliatory. On August 10, he emailed Motes about his problems with Endara and criticized Ryan’s earlier investigation.

Motes ultimately found the physical-contact allegation unsubstantiated. She nevertheless recommended a First and Final Warning based on Epperson’s tone and demeanor, together with renewed de-escalation training. The undisputed evidence established that neither Endara nor Ryan participated in the decision to suspend Epperson or issue the warning. Ryan subsequently delivered the warning, which stated that further policy violations could result in additional discipline, including termination.

Epperson remained employed and later received a merit-based salary increase.

The litigation

The district court granted Hertz summary judgment. It concluded that Epperson had not established an adverse employment action and had not shown the causal connection necessary for retaliation. On appeal, the Eleventh Circuit reviewed the ruling afresh, viewing the evidence and permissible factual inferences in Epperson’s favor.

3. Summary of the Opinion

1. The discrimination claim lacked actual employment harm. Epperson identified no change to his pay, responsibilities, schedule, or another identifiable employment term resulting from the warning. Possible future termination or reduced promotion prospects remained speculative.
2. Increased oversight was insufficient on this record. Epperson did not show that the alleged oversight altered an identifiable employment term or condition.
3. A “convincing mosaic” could not replace a missing claim element. Alternative methods of proving discriminatory intent did not excuse the absence of an adverse employment action.
4. The retaliation evidence did not establish causation. Motes began investigating before the record showed her awareness of Epperson’s complaint; Ryan’s delivery of the warning did not establish influence over her decision; and the approximately three-month interval was insufficient without additional connecting evidence.
5. The intervening workplace incident independently weakened causation. Discovery of misconduct could sever an inference otherwise arising from close timing.

The court did not need to decide whether Epperson’s evidence otherwise established age-based intent. Nor did it resolve the retaliation appeal by deciding whether the warning satisfied retaliation’s adverse-action requirement; it focused instead on causation.

4. Precedents Cited and Their Influence

A. Summary judgment and the governing statutory framework

Shaw v. City of Selma, 884 F.3d 1093 (11th Cir. 2018)

This case supplied the standard of review: summary judgment receives de novo review and is appropriate only when no genuine dispute of material fact exists and the movant is entitled to judgment as a matter of law. Evidence and justifiable inferences must favor the nonmoving party. That framework also informed the court’s rejection of Epperson’s contention that the district court improperly assessed credibility.

Mazzeo v. Color Resols. Int'l, LLC, 746 F.3d 1264 (11th Cir. 2014)

The court relied on this decision to analyze the federal and Florida age-discrimination claims together. It establishes that FCRA age-discrimination claims follow the same analytical framework as ADEA claims, allowing one substantive analysis to resolve both sets of claims here.

Hairston v. Gainesville Sun Publ'g Co., 9 F.3d 913 (11th Cir. 1993), and Alvarez v. Royal Atl. Devs., Inc., 610 F.3d 1253 (11th Cir. 2010)

These authorities supported using the Title VII analytical framework for the federal and Florida claims. They explain the opinion’s reliance on decisions arising under other antidiscrimination provisions. Their use does not mean that every statutory requirement or every discrimination and retaliation standard is interchangeable.

B. Age-discrimination causation and essential elements

Gross v. FBL Fin. Servs., Inc., 557 U.S. 167 (2009)

Gross supplied the ADEA’s ultimate causation requirement: age must be the “but-for” cause of the employer’s adverse decision. The court stated that requirement but did not reach a full analysis of age-based causation because Epperson first failed to identify an actionable employment injury.

McCreight v. AuburnBank, 117 F.4th 1322 (11th Cir. 2024)

This decision performed several functions. It described discrimination as outcome-determinative under the applicable single-motive framework, explained that a convincing-mosaic analysis ultimately asks the ordinary liability question, and supplied the elements of retaliation. It also established that temporal proximity must be accompanied by evidence of the decisionmaker’s knowledge of the protected complaint.

Tynes v. Fla. Dep't of Juv. Just., 88 F.4th 939 (11th Cir. 2023)

Tynes was central to the disposition. An adverse employment action is a necessary element of a discrimination claim, not merely a technical component of an evidentiary formula. Its absence therefore defeats the claim regardless of the method used to organize evidence of discriminatory intent.

C. Actual harm after Muldrow

Muldrow v. City of St. Louis, 601 U.S. 346 (2024)

This was the principal substantive authority. In Muldrow, a police sergeant challenged a transfer that left her rank and pay unchanged but reduced her responsibilities, removed access to a take-home vehicle, and imposed a less favorable schedule. The Supreme Court rejected a requirement of “significant” disadvantage and required only “some harm respecting an identifiable term or condition of employment.”

The Eleventh Circuit applied that distinction directly: a modest employment injury can suffice, but an employee must still demonstrate an injury. Unlike the concrete changes in Muldrow, Epperson’s warning had not produced an identified adverse change in his employment terms.

Jefferson v. Sewon Am. Inc., 891 F.3d 911 (11th Cir. 2018)

This decision supported the proposition that the harm underlying an adverse employment action cannot be speculative. The court treated that principle as consistent with Muldrow: eliminating a significance threshold does not convert possible future consequences into present harm.

Burlington N. & Santa Fe Ry. Co. v. White, 548 U.S. 53 (2006)

The opinion cited Justice Alito’s concurrence for its observation about relatively trivial treatment differences, including differing levels of supervision. That citation supplemented the conclusion that increased oversight, without a demonstrated change in employment terms, was insufficient here. Because the quoted passage came from a concurrence, it should not be characterized as the Supreme Court majority’s governing rule.

D. Evidentiary frameworks and the convincing mosaic

Ismael v. Roundtree, 161 F.4th 752 (11th Cir. 2025)

Epperson relied on this case to argue that the district court should have considered the totality of his evidence rather than treating an absence of pretext evidence as dispositive. The appellate court rejected the premise: the district court had relied on the absence of an adverse employment action, not on pretext.

Ismael recognizes that the McDonnell Douglas pretext inquiry and convincing-mosaic analysis are distinct approaches to discriminatory intent. It does not authorize either approach to dispense with an essential claim element. Its discussion of harmless analytical labeling also supported affirmance where the district court’s terminology did not undermine its correct substantive conclusion.

E. Retaliation: knowledge, independent decisions, and timing

Martin v. Fin. Asset Mgmt. Sys., Inc., 959 F.3d 1048 (11th Cir. 2020)

Cited through McCreight v. AuburnBank, this authority required proof of the decisionmaker’s awareness of the protected complaint. An employer’s organizational knowledge, or another manager’s knowledge, does not by itself demonstrate that the relevant decision was retaliatory.

Pennington v. City of Huntsville, 261 F.3d 1262 (11th Cir. 2001)

This case supplied the independent-decision principle: a decisionmaker’s own evaluation and independent judgment can prevent another employee’s alleged bias from tainting the outcome. Epperson produced no evidence that Ryan influenced Motes’s investigation or disciplinary decision. Ryan’s role in transmitting an already-issued decision was insufficient.

Clark Cnty. Sch. Dist. v. Breeden, 532 U.S. 268 (2001)

This authority addressed Epperson’s August 10 email, which informed Motes about his earlier complaint after the investigation had begun. Continuing along disciplinary lines already contemplated does not itself establish retaliatory causation. The court also noted that Epperson expressly relied on his May complaint, rather than the August email, as the relevant starting point.

Thomas v. Cooper Lighting, Inc., 506 F.3d 1361 (11th Cir. 2007)

The court applied this decision’s rule that timing alone must be “very close” to support causation. A three-to-four-month interval, without more, is insufficient. The May complaint and August warning therefore required additional evidence linking the two events.

Berry v. Crestwood Healthcare LP, 84 F.4th 1300 (11th Cir. 2023)

This decision supplied an additional causation ground: discovery of intervening misconduct can sever an inference created by close timing. The Oceanside confrontation provided such an intervening event. Importantly, the relevant disciplinary finding concerned Epperson’s tone and demeanor, not the unsubstantiated allegation of physical contact.

5. Legal Reasoning

A. Lowering the harm threshold does not eliminate it

The court’s analysis separated the degree of injury from the existence of injury. After Muldrow v. City of St. Louis, an employee need not prove a substantial loss, reduced compensation, or a major career setback. Nevertheless, the challenged action must leave the employee worse off regarding some identifiable employment term or condition.

Epperson relied principally on the warning’s potential consequences: future termination, diminished promotion prospects, and a shift from “good standing” to a precarious employment position. The record did not establish that any such consequence had occurred. He had not been terminated or denied a promotion and identified no other actual employment disadvantage attributable to the warning.

The court also rejected the argument that the warning newly subjected him to termination for policy violations. His onboarding acknowledgment already made clear that violating Hertz’s code could lead to termination. On this record, the warning reiterated an existing condition rather than establishing a newly harmful one.

This is a fact-specific holding, not a categorical rule that written warnings can never support discrimination claims. A warning that actually changes eligibility, duties, benefits, or another employment condition would present a different evidentiary question.

B. Evidence of intent cannot substitute for evidence of injury

Epperson’s convincing-mosaic argument concerned how a plaintiff may prove discriminatory intent. The court explained that this question becomes immaterial when another indispensable element is absent.

The McDonnell Douglas framework and convincing-mosaic approach are analytical tools, not independent causes of action. Even compelling circumstantial evidence of bias cannot establish this discrimination claim without an actionable employment decision. Accordingly, the district court was not required to conduct an additional intent analysis after finding no adverse employment action.

C. Retaliation required a connection to the actual decisionmaker

The parties agreed that Motes was the decisionmaker for the warning. Epperson did not establish that she knew of his alleged protected activity before commencing the investigation. Although his August 10 email subsequently supplied information, the disciplinary process was already underway.

The court did not establish an absolute rule that knowledge acquired during an investigation can never matter. Its reasoning rested on the chronology, the already-initiated disciplinary process, the absence of evidence connecting retaliatory bias to Motes’s decision, and Epperson’s own reliance on the May complaint.

Ryan’s knowledge did not fill that gap. No evidence showed that his alleged bias shaped the investigation or result. The distinction between deciding discipline and communicating it was therefore decisive.

D. The surrounding events did not repair the causation gap

Epperson alleged exclusion from emails and duties between May and August. But he did not connect those exclusions to Motes or her warning decision, and he did not assert them as independently actionable adverse employment actions.

He also relied on Ryan’s July statement that corporate America would remove employees it disliked. The court found that remark did not bridge the relevant temporal gap. It was neither new protected activity by Epperson nor an adverse action against him, and it did not connect Motes’s decision to the May complaint.

Finally, the Oceanside incident supplied a concrete intervening reason for an investigation. The failure to substantiate physical contact did not negate the separate finding concerning tone and demeanor.

E. The disputed issues were not material to the dispositive legal defects

The court rejected Epperson’s contention that the district court had improperly weighed evidence or assessed credibility. Its dispositive conclusions concerned the absence of identified employment harm and sufficient causal evidence.

This illustrates the distinction between a factual disagreement and a material factual disagreement. Whether Epperson pushed Quintero was disputed, but the warning rested on a separately investigated basis, and the court’s stated grounds did not require resolving the physical-contact allegation against him.

6. Potential Impact and Limits

• Warning-based claims require evidence of consequences. Employees should identify what the discipline actually changed, rather than relying solely on its threatening language or possible future use.
• Nonfinancial injuries remain actionable. The decision does not reinstate a significant-harm requirement or make a pay reduction indispensable. Changes in responsibilities, scheduling, or other employment conditions may suffice.
• Alternative proof methods preserve substantive requirements. A convincing mosaic can establish intent, but cannot cure the absence of injury or another necessary element.
• Decisionmaking roles matter. Evidence that a knowledgeable supervisor investigated, influenced, approved, or merely delivered discipline can produce different causation outcomes.
• Independent investigations matter substantively. A nominally separate human resources process is not automatically protective; the relevant question is whether the decision was genuinely independent of alleged bias.
• Timing must be considered alongside intervening events. Even close timing may lose probative force when a new workplace incident independently triggers discipline.

The opinion should not be read as holding that paid suspensions are categorically nonactionable, that every warning lacks legal significance, or that discrimination and retaliation share an identical adverse-action test. Its discrimination holding concerned the demonstrated consequences of this warning; its retaliation holding concerned causation.

Because the disposition is unpublished, its principal value is persuasive: it shows how an Eleventh Circuit panel applied existing authorities to warning-based claims after Muldrow v. City of St. Louis.

7. Complex Concepts Simplified

Adverse employment action

For the discrimination analysis here, an employer’s action must cause some actual disadvantage involving an employment term or condition. The disadvantage need not be significant.

But-for causation

The employee must establish that the challenged adverse decision would not have occurred without age being a determining cause.

Protected activity

Conduct protected against retaliation, such as opposing unlawful discrimination. The court referred to Epperson’s alleged protected activity without needing to definitively resolve its protected status.

Pretext

An employer’s stated lawful explanation that allegedly conceals the actual discriminatory reason. The district court did not grant judgment because Epperson failed to prove pretext.

McDonnell Douglas framework

A structured method for evaluating circumstantial evidence: an initial showing by the employee, a lawful explanation from the employer, and an opportunity to show that explanation is pretextual. The ultimate burden of proving discrimination remains with the employee.

Convincing mosaic

Circumstantial evidence considered together that permits a reasonable inference of intentional discrimination. It is a way to evaluate evidence, not a substitute for required claim elements.

Temporal proximity

The closeness in time between protected activity and an adverse action. Timing can support causation, but does not automatically establish it.

De novo review

Fresh appellate review of the legal ruling, without deference to the district court’s legal conclusions.

8. Conclusion

Steven Epperson v. The Hertz Corporation reinforces two limits on employment claims: a lowered injury threshold still requires actual employment harm, and retaliation requires evidence connecting protected activity to the challenged decision.

The warning’s possible future consequences did not establish present discrimination injury, while the independent investigation, insufficient timing evidence, and intervening Oceanside incident defeated the asserted retaliatory connection. The broader lesson is evidentiary rather than categorical: actionable harm and causation must be demonstrated, not inferred merely from a disciplinary label or the sequence of workplace events.