I tanked all through ARR and have healed thus far from the arse end of HW up until today: I've found the above to be true but what's also true is if the dps get pissy enough you can drop duty, eat your penalty, re-queue and probably be back in a dungeon before they get a replacement. Even if not it beats helping people that trigger happy with F bombs to complete goals.
If people act like uncivilised children over minor things Ive got better things to be doing tbh...
