Once upon a time, back in vanilla WoW, in the days when Lady Prestor, Highlord Bolvar and the boy king Anduin occupied the throne room in Stormwind Keep…the Onyxia event bugged.
"Lady Prestor" was there as a friendly NPC just like she was supposed to be…except she was in her dragon form. Hilarity ensued.
(That mage in the leet Molten Core gear is Skarlette, who is still my main.)