1. i usually like tank to pull big and healer heal big in whole instance. It's a easy clean up to my hunter. faster pace= faster jp and vp and gold reward random. If it comes to newcomer tank that has little experience or none, i md and take my dps easily or go ahead nuke like madman and let tank try to improve his awareness ability. I don't want to feel like an asshole to kick them, but most of time group may be an asshole to kick them out.
2. If i aggro them, i usually tank them on my own or kite them along with my frost trap. I like challenge something. I like to be slap in face. >=D