Mine was a two-target kill, in 1 night.
Level 80, March 15th of 2010.
Kill High Priest Thekal in ZG, Swift Zulian Tiger.
Also, got enough Bijous and Coins to get Exalted with the Zandalari Tribe.
Later that same night (or rather right after I finished my mount run in ZG)
Ragnaros drops the Eye of Sulfuras, allowing me to complete Sulfuras, Hand of Ragnaros.
Best. Night. Ever.