i have never done it either, but i'll be honest, i would try it if i came across it. i have a bunch of friends who use it very occasionally (like a few times a year) and they don't have any problems. it's probably a good idea that you don't come across it often, because then you won't have the ability to become addicted or anything. just make sure you start off with a very small amount, and don't smoke it!! crack is more addictive and more dangerous.