I've done it! :-D My proudest (and most difficult) WoW accomplishment!
Sadly, there's no Feat of Strength or Achievement for it, and while I don't have a '2200 Rating' or 'Heroic: Deathwing" kill to show off, I'd like to think this is probably much rarer, and I would hope most would at least acknowledge it's on a similar scale of difficulty to accomplish. Once upon a time I thought this was impossible, which made me want to do it all the more! ;-)
Let me say though, the first time I heard of someone on Shadowsong doing this, I was jealous, envious, incredulous, and honestly, quite demoralized... You have been warned!!! ;-)
Hey! That was... actually pretty funny ;-)