Triumph of the Dungeon Master!
Ah, how I have come to love that sense of accomplishment and victory that I get when I pull the wool over the eyes of a clever player character. What DM Triumphs have you had?
Some of mine:
1. Finally killing an incredibly powerful, lucky, annoying player's character.
2. Finally achieving a TPK (Total Party Kill)
3. Finally achieving a TPK using only traps
4. Finally working out how to make it so that d**n wizard doesn't steal the spotlight all the d**n time.