My band had a gig in a weenie cafe in the center of Rotterdam. There wasn't a stage of any kind and our stuff took up almost 1/3 of available space. As we started to get grooving, suddenly a man burst in, cussing and yelling. He unplugged the guitarist's instrument and threatened to beat us up. He even almost hit a man who was dancing on what little space there was. I was ready to jump the guy if he really would have started a fight. It appeared that the cafe had no clearance whatsoever to play loud music. The man was from an appartment nearby and clearly under the influence of some funky drugs. After that incident, we decided to pack our stuff and go. Luckily we still got paid Does anyone else have this kind of experience? I thought it was pretty eerie, yet also funny somehow.