In Episode 402, "The Giant Gila Monster," Joel and his robots noticed something that happened frequently in the film. What happens is that the characters frequently put their leg up on something. On tables, on car bumpers, on rocks, whatever is close by. If there is something to put one's leg up on, they will! The "leg-up blocking" of "The Giant Gila Monster" has spurned our creation of The Gila Monster Drinking Game.

Quotes from the episode.