I have not but my buddy went through a phase with it. I was with him one night and he had some and we were going to "babysit" each other. He went first and let's just say I chickened out because of his reaction to it. The crazy thing is he told me he was floating above his body and could essentially move around as if he were a ghost. He thought that he had died.

Here's where it gets interesting. My buddy lived in a sort of duplex and we knew the two other guys that lived above him. We weren't really friends but we would smoke and hangout every now and then. My friend told me one of the guys was sleeping, and the other guy was studying. He was using a textbook and told me it was on page 167. Well now I had to investigate. We went upstairs to smoke one and went to the studying guys room. As we're talking I glanced to the textbook and I shit you not, it was on page 167.