I'm sure atleast some of you have been in the Netherwing mine and when your going across the bridges you can look down and see a bunch of sludge creatures and those worms that dig holes and spit crap.
Heres where the fun comes in, grab a whole bunch of those bugs and bring em back to one of those poles. Get them right up to the pole and stand behind it. Wallah! You can now hit the worms and they cant spit acid at you. Great for AoEing them down without losing health.
Not the biggest exploit in the world, but I thought it was pretty cool for my clothy.