Audio problem: When Elmer has his hat and coat taken off by the Hat and Coat Remover, he says "Hey! What is this?" but his mouth doesn't move.
Continuity mistake: When Daffy pushes a button to start the massaging chair, you can see that the button panel is on the arm of the chair, but when we see Elmer receiving a massage, the panel has disappeared.
Continuity mistake: When Daffy pushes Elmer onto the bus, you can see that Elmer is in the front of the bus when it drives off, but in the very next shot he is now sitting at the back.