Great guide, lets share knowledge with those who don't know
As a healer, you have the "power" to educate these ones.. If i see a DPS (specially the smashers) going out of control, he will just die. Accidents and mistakes do happen, but a DPS feeling like a god and only thinking about him/herself, gets some nice education from my side. If he cries, its his/her problem.
Normally, i can keep everyone alive and put out some DPS as well, but the focus will always be on the tank to keep alive (and me as well).