Last summer we had reservations (made a long time in advance) for a favorite campsite at a state park on a lake. Two days after we arrived, a huge family group moved in to the sites all around us. They traipsed through our site to access their family's site on the other side of us even though there was easy access by using the road in front of the sites. We tried putting out lawn chairs, but that did no good. We told the little kids to go around, which they somehow managed to do. When I told one of the "adults" to please stop going right past the back of our trailer, I was told that the campsite was "public property" and she had a "right" to be there. We were pretty happy to see the whole group pull out after the long weekend.
When I posted about it here on this site, one of the members said that they couldn't see what difference it made which site we were in, and that we should probably have just swapped sites so the family wasn't separated by our own camping space. I don't think so! We reserved the site for the view, which was the reason it is our favorite site in the park. To even have someone suggest that we (who had long ago made our reservations and had been there for two days before the others arrived) should have pulled up stakes and moved to a less desirable site really bothered me.
Off my soapbox!