A creative way to hurt yourself. Blind mumblety-peg. Blindfold yourself and lay on the floor. Then throw a knife up into the air (not across the room -- that defeats the purpose). This non-firearm form of Russian Roulette can end up inflicting the player with some nasty cuts, but I don't think you could kill yourself doing this.
Is this something that would appeal to Emo kids?
Many Thanks to Ffffound