Hi!
I have been leveling quite a few warrior's recently, and I have noticed that there aren't any fightclasses that are abusing this "exploit" if you can even call it that.
As some of you may know, there is a talent in the fury tree that allows you to deal 25% more damage after being critically hit. You can abuse this by using /sit, because in Vanilla, sitting down gives your opponent a 100% chance of getting a critical strike on you, and this even works for mobs.
I don't know if what I said is well known or not, I just thought it would be a good idea to post it since warriors are very fucking slow to level ^_^