It's interesting to consider how professional establishments frequently visited by inebriated people handle harassment and stuff: they hire some professional bouncers. I've read an article in the paper recently about a very experienced bouncer. It's interesting how little of that job revolves around force or authority through uniforms or stuff like that. Most of it is communication skills and people skills, establishing contact, talking to people to make them understand that they're a problem and, if necessary, that it would be best for them and everyone else if they exit the club.