No one could figure out a simple, yet funny way to get Aubrey out of the house when he was being held captive by the angry dog. Buster Keaton, employed by MGM as a roving gag man, was called to the set, looked at the set up, and came up with the idea of removing the door hinges and letting the dog in as Aubrey got out. The most famous gag in the movie took Keaton all of five minutes to devise.