I'm mainly a summoner DPS (but heal from time to time), and you know it's a problem when as a DPS I have to help with resurrections and pathetic curing abilities when the tank decides to pull 3-4 trash mobs. It's really a waste of time when the Tank decides that the healer has time to DPS when the tanks themselves are causing the agony TO THEMSELVES. How are you going to blame the healer when you are setting them up to pretty much be cornered to listening to your pathetic excuse of an instruction. If you are blaming other party members for your own rushing and exceptions, you should just drop being a tank, period.