Oh yes we have...the worst one that comes to mind:
It was only our second trip ever as we were brand new RV-ers. We drove 4 hours up north to the private cg we had booked for the weekend, only to find out that, on a Friday, they had decided to re-black top their driveway, and would not let us get to our site for at least 2 hours. They had my husband back up almost the entire distance of their 100 foot driveway and in the process he clipped their lodge front steps and moved them about 6 inches. A bunch of the people that worked there, complete rednecks with beers in their hands, beer bellies, some shirtless and others with tank tops, then came out to "supervise" my poor hubby backing up the rest of the way.
Thankfully he's a good driver and got us all the way back to the entrance, where the redneck owners parked us in the grass and told us to wait for our site. This didn't sit well with us and we went to the lodge to get a phone book to look for other cg's in the area. We told them we were not staying, which got their attention, so they promised to get us to our site. They had my husband drive across their property on the grass, and between two trailer homes, with about 2 feet clearance on each side, to get us to our site. Which wasn't really a site at all, but a spot of grass between the lake and the seasonal campers.
OK fine, so we setup camp in 95 degree weather and tried to make the best of it. The next day we went to town, well a bad storm came up and when we got back our awning was wrenched up and over our new camper. Rookie mistake of ours, but I still wonder why no-one could put it up for us in our absence, we were surrounded by people on all sides and this is the land of Minnesota nice where we look out for each other.
Managed to get the awning bent back forward and rolled up, then zip tied for the trip home. It was another 95 degree day so we hid inside the camper in the A/C and made a frozen pizza in the oven for dinner. It was our anniversary and we still joke about our "Redneck Anniversary."
There were a bunch of other negative things about the campground, enough to make us state park campers going forward! That was one of the few trips where we were happy to go home!