provided no one else attack morogrim, and no healers heal the md target, he will reset. Its basically the same as a hunter pulling then feign death to get rid of murlocs, but instead us acrifice a guildy lol. In my old raid guild the other hunters and i would misdirect trash and morogrim stuff to each other. the game was...who could click off the misdirect buff the fastest wins lol
i can confirm this lol our guild leader (hunter) got his new pet and was braging because now he can just stealth his tiger through so his pet does not pull, well a few seconds later his pet pulled killed his pet him and reset.
Also this gets rid of any of the mobs in his room so if u do this in the front of the room all the trash will go away.