Self correcting aggro is self correcting. And DPS means Don't Pull Shit!
Basically if your to stupid to learn gtfo the bad shit, I'm not letting you die out of spite I'm doing it because I don't have enough mana to out heal incompetence, this isn't WoTLK any more. They should be lucky I have the patience to not kick them, assuming I don't. Although this is the reason I only group with guild even before cata.