this is a trick in the stockades, the catch is you must be a caster, i dont know much about it on a hunter, but definetely not for melee classes. i do this using a fire mage, level 27 when i made the video, level 25 when i found out about it, but it took me about 1 hour to get from mid 25 to 27 doing this exploit and i had rested all the way. if you're a warlock i imagine dot the living daylights out of the mob and let your imp do its work, if you're a shaman drop the earthbind totem, if you're a priest, might be a little harder than the others. basically you use the environment to your advantage, the only spot i know it works is near the entrance portal but you use the stairwell walls and you run from the left to the right which makes the mob do a big u=turn. i came home today and made the video real quick and posted it on google video this afternoon, i talk about how to do the trick in the video, so turn up your volume.
heres the link
note and edit: this was a complete accident with me finding it out. i was just wandering one day if it was possible for me to solo an elite my level and did it the hard way the first time, then trying to get as far away from the next mob found out about the bug.
and another note: chances are you probably shouldnt do this in populated areas, you could get reported and warned orbanned, since the stockades is an instance, if you're alone its ganna be a lot harded for someone to figure out what you're doing than if you're bugging out the wastewanderers in tanaris, or the orcs in the bleeding hollow ruins or something like that.