Just FYI, I'm not talking about a dragon in Tanaris. :)
Turns out I should be calling it "The Oculus". Sigh.
Sidebar: Once back at level 70, while waiting for a CoT group to form up, 3 of us decided to take on Anachronos, an elite boss dragon outside the Caverns. After about 10 minutes of beating on him, he reached 20% health and totally ****blocked us by despawning and saying ""A terrible and costly mistake you have made. It is not my time, mortals."
I'm totally going to say that to Rotface the next time he kills me, and then despawn. Take that!