This is a horribly fun trick to play on friends, so long as you don’t do it at your own house. It makes a hell of an awful mess. When one of your friends gets up to go to the bathroom for a shit, you wait a minute, then with at least two accomplices, you follow. Once you locate the stall that he is now trapped sitting in, each of you releives your bladders onto the floor all around him.
Its like trapping a squirrel in a tree. He will have to lift his feet off the floor to avoid the growing lake of urine, and he will have nowhere to go without spending the rest of the evening reeking of piss.