This is actually about Marrowgar in ICC and the two worms... Dreadscale and Acidmaul or whatever their names are in ToC10/25.
I'm an affliction lock and I'm kinda tired of tanks yelling at me to watch my aggro when the bosses reset... With Marrowgar, threat is reset after the spikes, when I still have a number of DoT's on him, while Dreadscale goes underground for a few seconds, leaving my dots the only thing hurting him. In both examples, I out-aggro the tanks, since the tanks can't do anything. Then I get nuked by the boss and have to deal with a tank saying, "lt me git aggro b4 u attack!!11!!!1"
Any ideas to avoid this... other than not going?