We have Irish Travellers in Texas. A big community of them. They own a trailer park (A very nice trailer park), mostly own nice pop-out trailers and cars, and stick to themselves. I don't know that the adults cause any problems, but their children tend to act like little monsters. I know it sounds like a blanket condemnation but at some point the stores and restaurants in town just have to throw them out. Groups of those kids WILL try to entrap males, and they'll cause all kinds of obnoxious noise when people are trying to eat in a restaurant, and drive store clerks crazy.