I didn't make it!
I've found that I can generally tank non-heroic instances by simply spamming [Cleave] and [Thunderclap] (while switching target in pulls of more than two targets so every unit gets a whack). Occasionally, I'll have to throw a [Taunt], but not usually. My DPS contribution if horrible when I do this and there is a definite increase in time to down the mob, but I keep threat and we don't wipe.
Query: is this doable in heroics? When I was experimenting with this I thought, "Maybe leveling PUG DPS is just lazy and not generating the kind of threat they *could*." Is that the case? Will heroics make tanking more difficult so that this tactic is no longer viable?