When you go to a rave, you expect to lose a lot of things: Your keys, your wallet, maybe even your cellphone. Maybe even your mind. We're not sure how many party people are out there actively losing their fingers, but this guy Ian went in. We're not sure what possessed him to to hang from a sculpture known as the "Brain Drop," but it looks like the sides of that thing were sharper than he anticipated, as he apparently ripped his pinky clean off of his hand. We'll warn you, this video is kind of disturbing, as there is a shot of his digit hanging from the other side. And let this be a lesson: Don't go hanging from shit that you have no business hanging from.