As a Tank I'm not using my mitigations or self/target healing thats the other peoples roles I only do my aoe once or twice and provoke. If dps uses second wind as a healer I might as well rescue them off the map that's MY JOB. If I'm DPS and I see my Healer or tank doing damage? well guess I'm not needed as a DPS I'm just going to stand their emoting! if these healers and tanks dare do my JOB. (Here's what yall sound like when saying you pull you tank).

Ofc if ur a DPS is pulling mobs and running away from the tank with aggro instead of going to the tank once you've reached the pull then yeah don't pull lol, but tanks really need to understand that pulling isn't exclusive to them just as healing isn't exclusive to healers or doing big damage isn't exclusive to dps