Umpire: Okay, let's go over the ground rules.
You can't leave first until you chug a beer.
Any man scoring has to chug a beer.
You have to chug a beer at the top of all odd-numbered innings.
Oh, and the fourth inning is the beer inning.
Chief Wiggum: [in baseball uniform] Hey, we know how to play softball.
-- The canonical softball drinking game,
"Homer at the Bat"