Imagine how bad a comic convention smells. Now imagine how terrible most dance clubs smell when in full party mode. Now combine the two. You're welcome!
It's not even so much that raver gear surprises, shocks, or horrifies me any more. That's not what gets me. I'm just amazed that kids are still overloading their senses on questionable drugs and more questionable music on the weekends like we're still in 1998 Essex or something.