Ive only been kicked once from a df group doing Cutter's Cry. I was on whm at the first boss trying to kite the adds. The tank would take half of them and i ended up dying because the other half were on me and i would stop to try and toss a cure to him. Eventually i ended up dead, two attempts and one of the dps declared "heal your horrible" *insert black loading screen here*. queued up again for CC with my gf tanking and didnt have any issues because she didnt try and tank some of the adds.