A lot of people try to evade the naxx ganking near the Summoning stones, so they fly under naxxramas, thinking that they're safe in there, since it is high and looks secure place.... but no.
If you're a mage and have Blast Weave, with the knockback just mount up, fly next to the payers, dismount, use blast weave in the same moment and just hit slow fall / ice block / use blink to evade the fall damage. As you will see, the enemy player will get dismounted and he will die from the fall damage, taking him 10% durability.
Probably shamans can do that too, if they have some kind of slowfall effect (parachute cloak for example)
Good luck breaking the nerves of other players ^_^