I put myself through college working grave shift security in Silicon Valley. At first they put me in a patrol car. I would drive endlessly around empty parking lots. Really slow. I would play a game where I would rest my eyes for 10 seconds. Then it became "I'm going to lean my head against the window and just rest it for a little bit." (I would be cruising down the parking lot at 5 mph.)
One night I woke up in the bushes. I had fallen asleep, the car went over the curb and into some bushes. The car survived but the bushes were toast.(Everybody beat the hell out of those cars anyways so no one noticed.) I went straight to the office in the morning and demanded a desk job.