Working the rails while working his rail.

As a guy, you never know when the desire to jerk it is going to hit. You could just be riding the bus, walking down the street or having a coffee — then suddenly be hit with the thought, “Hey, it would be pretty nice to whack off right now!”

For most people, these random desires to yank it generally fade into the background in their teenage years. However, some never develop the “can’t do that here” muscle, and so, they end up doing something like this: