(E) The defendant or his or her counsel behaved during the hearing or trial in a way that caused the minor to be unable to continue his or her testimony.
In making the determination required by this section, the court shall consider the age of the minor, the relationship between the minor and the defendant or defendants, any handicap or disability of the minor, and the nature of the acts charged. The minor's refusal to testify shall not alone constitute sufficient evidence that the special procedure described in this section is necessary to obtain the minor's testimony.