Only REALLY useful if you're doing the quest "Cleansing felwood" and are killing the elementals in the cave, I found a pathing exploit that lets you pull as many mobs as you can dot without taking any damage.
coordinates at 56, 17. Entrance to Irontree Cavern.
For some reason mobs will not go up the step to the left of that rock. all you have to do is walk over the step, stayin on the left side of the rock, then walk back. I'd post a video but I'm getting bad lag right now so perhaps later.
All in all useless, but still nice for that quest should you happen to be doing it.
edit: photo is giving me issues