Whatever happened to critical hits where the pc lost an eye or limb? Didn't there use to be a table in the DMG for such a thing? I remember our party thief lost a leg and got a wooden peg. Then he got polymorphed into a weasel and we carried this weasel with a pegleg around until we got enough money to pay a cleric in Greyhawk to restore him. I know it cost big bucks. I suppose it would be difficult to implement something like that. Maybe something like the poison effects ,only permanent until restored.