When The Three Stooges open the door to the dog catcher's truck there is a man sitting behind the left door but is not inside when they are driving away.
When Moe grabs Larry by the hair, the money falls out, but it is back in his hair, in the next shot.
When the doctors are fighting with Curly to get his oxygen mask on, Larry's wig is seen, but in the next shot, it is off.
When Moe and Larry knock over the orderly with the dishes a third time, Larry almost runs the wrong way at the end of the corridor.