Nibuca at Mystic Chicanery talks about a mob aggro bug in Karazhan that resulted in not just a wipe, not just a spectacular wipe, but the best wipe ever
. An out of nowhere, 15 mob pile up that would be a night ending catastrophe if it wasn't so surprising and amusing all at the same time. Like watching a Orc suddenly executing an elegant pirouette.
Have you had a wipe like that?