That sounds fun and cool!I don't think so. We were told to draw up a waiver just to be on the safe side, which we did. It's just a simple one saying we're not responsible for injuries and such, but there's nothing dangerous anyway. They'd pretty much have to hurt each other or trip onto a table or something to get hurt.
Do you have to worry about any legal/business issues? like if someone gets hurt during the experience, or whatever?