There’s just no figuring out why some people do what they do. But there’s nothing in the thread so far that isn’t commonplace.
I’ll add a pet peeve of my own. People who park just inches from the car next to them, preventing the driver of the other vehicle from getting back in when he comes out of the store. I had some clown do this to me a while ago. He was sitting in his vehicle with his radio running and was so close to my door I could even slide in between the cars. I tried to get his attention verbally and he ignored me. So I banged on his rear fender. He then paid me notice with an unfriendly comment. I told him he had 30 seconds to move his car so I could get in mine or I’d call the cops. He moved.