Those things are everywhere around the City where people have a tendency to "park by feel". I live in the eastern suburbs of NY (Long Island) where people are a little better. I prefer to leave the trailer ballmount and ball in the receiver all the time. The chrome finish on the ball ball got scuffed up a little when I towed the bike so I just sprayed it black, looks fine and certainly serves as a deterrent to the "park by feel" crowd.