Never at a residence. But at campgrounds, river put ins, ect.....I have used them many of times all over the country. They always suck in late July and August. One thing I have learned is always take your own TP.
One time next to clear creek of the Arkansas river in Colorado I was walking towards one with it being about 300 yards away and I had to go bad. I see this car racing down a dirt road towards it and sure enough when I am almost to it they stop and go into it. Only choice I had was messy pants or to go right outside of it.......I didn't mess up my pants.
Worst one I've ever seen was at a camp on the Kern river in the southern Sierra Nevada. I went in and looked around, turned around and found a place in the woods instead. Nastiest thing I have ever seen.
