Another
Mind-Fuck Game.
Gather some people - hopefully at least 5 who know the game, and one who doesn't. Send off the person with whom you will be fucking, so that the rest of you can agree on the one rule of the game. Namely, figure out a pattern that denotes who each of you will represent. Commonly, you will pick the person on one side of you - say the left. Any questions asked of you, you will answer as if you were that person. Other variations could be all celebrities, or whatever, but I find that sticking with the people present is much funnier. Bring the fuckee back and explain to them that they are a psychiatrist. They will need to basically figure out what the hell is going on by asking questions. Let the fun begin.