Any guy that takes a piss next to you when there are five empty urinals just to take a peek at your junk. Or, a male/female prison guard that goes from cell to cell watching inmates jerk-off.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.