Wanted to share what happened to my guild last night, when they were doing the usual heroic naxx clear of the week..
Everything went silky smooth untill they faced Kel.
As he was reaching his end, they hadnt lost anyone special and was safe for a kill, one of our priests got mind controlled when kel was at 1%, and the one in a million happened. The priest Guardian spirited him, they killed him and he regained full health.
Obviously seeing the adds spawned they got owned by them and whiped shortly after
I wasnt in the raid at the time so i cant authenticate it with a screenshot unfortunaly, just heard the extreme noise on ventrilo.
They killed him the next try however..