If a guy said THIS to you at a night club what would you do?

I was at a night club, just dancing with my girls and this guy approached me and started dancing with me. He was pretty cute. Then he reached around in his pocket and I had no idea what he was doing and I wasn't really suspicious or anything. I figured he was getting his phone or something. But he pulled out a can of mace (pepper spray) and sprayed me in the eyes and face with it then put his lit cigarette down my top and started my crotch area. I had no idea what to do I just got a cab home.