Inyour experience where did you find the least private urinals? I remember as a 18 year old going to a game at a local soccer arena. At halftime I went to the restroom to find a giant trough in the center of the room. Guys stood on both sides of it. I saw alot of penises without trying. I then noticed that the restroom door was stopped open and the ladies outside could see in as well! I'm sure they got quite the show.
Several spring to mind:
Outdoor urinals at an airshow which were inside a compound, but that compound had a wide open entrance from which anyone could see straight inside.
Urinals in a trailer, which were up some steps, but the first urinal was clearly visible from outside the door and there were two girls who were loitering near the stairs pretending to chat and look at their phones but they were watching whenever a bloke used the end urinal. I sussed this and chose to use the end ur