Dependency of mother is established. Her son was killed by falling down an elevator shaft in a hotel. The shaft into which he fell was adjacent to the one in which he operated a car. He opened it by mistake. The question involved is, did the son abandon his employment by leaving the elevator he was operating to deliver a letter to a guest of the hotel? There is proof of a general rule that elevator operators should not leave their cars, but this rule was violated frequently and notoriously; its violation several times was directed by the immediate superior of the operator. Award for death benefits has been made. Award unanimously affirmed, with costs to the State Industrial Board.