What's your best "house rule?"

I guess I'll start, or this thread will go nowhere. Among my group of friends we have the "you get fucked" rule, which basically states that if you come up with an idea, you're the one who gets fucked.

For example,Odin wants to play COD splitscreen, but Thor and Loki want to play too, Odin gets fucked out of playing first because it was his idea. If Loki wants to go get burgers later, he's gotta drive.

If it's your idea, you get fucked.