Haven't been to a rave before, but I've smoked in crowded clubs where you're definitely not supposed to. Brought in a joint in a cigarette box, went to the most crowded area on the dance floor, and sparked it. Held it like a cigarette and was even able to pass it to a few friends next to me since I held it really low. I've done this a few times at different clubs and I find that it's not so much security that you have to be worried about as it is all the people that start staring at you and looking at you when they see where the smell is coming from. Some even ask to hit it.

Smoked once in a club and security noticed and came at us with a flash light. He pointed it at our faces and hands to see where it was, but one of us had already flicked it onto the floor somewhere in the crowd. I'm sure you can do it, but it's just nerve-wrecking to know that you could get caught at any second. It kind of takes the fun out of it, to be honest.

If you do, just make sure it's easy to get rid of quickly if need be. I'm not sure how security goes at raves, but at clubs, you have security people ALL around the club. Just feel it out and see.