Have you gotten some truly funny MC's off on the opposing faction? Have you been the target of a MC that made you ragequit? A while ago i was waiting outside BoT for raid and some alliance thought they were cool and flagged, so our guild started attacking them and they had this other priest that was mana burning me like a douche, so I MC'd him off the edge of the platform, then did the same to the druid healer and the blood dk lol.
Also, in eye of the storm a priest had mc'd me as our team was nearing victory and i levitated instead of falling to my death our team won and i left the bg as quickly as possible lol