Yeah, if someone's cheating at a poker game between friends that's really messed up. The closest thing I've ever done was rigging the deck when my little brother and I were playing heads up soI had 4 aces and he had 4 kings, but it wasn't for real money and I obviously told him afterward.

Oh yeah, and this one time a few friends and I were playing and two of us brought one of those funny decks where the cards are only A-10 or something like that. Haha you should have seen everyones faces on the first flop...