DISCLAIMER: THE FOLLOWING POST IS NOT TRUE (EXCEPT FOR THE TRIVIA), NOR IS IT INDICATIVE OF ANY LATENT DESIRES TO HURT CO-WORKERS (I LIKE MINE, SEAN LIKES HIS) OR THROW KNIVES (KNIVES ARE FOR COOKING).
Not often played today, mumblety peg is a game that involves players throwing their pocket knives at the ground, and seeing how close they can come to their own foot. If you actually hit your foot, you win by default.
I sometimes play this game with co-workers and then, instead of throwing my knife at the ground, I throw it at their hearts. Sean plays a variation of my version of the co-worker game wherein he punches his co-workers in the kidney. I think either is an enjoyable pastime for a work-a-day afternoon.