Treacher's Glee is a +1 shortsword that is also anarchic (i.e. it does an extra +2d6 damage to opponents who have a lawful alignment, but any lawful character who wields the weapon suffers a temporary -1 experience level adjustment penalty as long as the lawful character wields the weapon).
I had a rogue using Treacher's Glee during the battle at Lord Axer's Thorpe. What a bloodbath! The rogue was cutting through Axer's minions like butter.
