If the dps wants to throw their dps at the wall and pull off you then let them. A dps should know how to control themselves accordingly, I had a brd +1 all decked out in I90 gear ecept 3 peices, and a respectfully geared BLM and I found it rather easy to hold threat off them. I marked as well. If the dps don't wanna play nice then don't sweat it. Remember this is a game.