I have done many dungeons with it breaking and although a long way from combat I disregarded it as someone doing it. But last night I was in a raid with the guild and it broke when we were a distance from it. We check the logs and it was the auto attack from the DK tank who was around 20 yards away. Is there some bug I am missing? Hex breaks randomly about 1/10 for me I would guess, any one else experiencing this? Does it have some random chance to break?