Ok we all know there comes a time in every DnD players life where they have upset some sort of God, placed an odd ring on their finger or drew from the deck of many things and have had a curse placed on them. So lets hear some of your worst curses, wither you were the DM handing out the pain or the poor player unlucky enough to touch the glowing black orb.
Action: Dragon caught the groups theif trying to steal from it's hoard
Result: Theif is cursed to scream and flee in terror when he sees money/treasure
Action: Dwarf insults a witch
Result: Dwarf is turned to stone
Result2: 1/2 Orc sells the now dwarf statue as a lawn orniment for 10gp
Action: LG Elf Paladin slays a Lich, with its last ounce of power it curses the elf.
Result: The Elf now must eat everything it slays and everything on it.<~~~~~~~~ Most Evil curse used to this point. (Remeber Kids failing a Will save is bad)
I have many more but I thought I would just post a sample for now.