A young couple were going at it on a Railway track. The train driver spots them and starts hooting but they ignore it. He applies brakes so hard and the train stops just a few yards away from the couple. Driver jumps from the engine and walks to the boy who just finished and is standing up and zipping up his pants.
The driver shouts out to the boy “Do you realize that if I had not seen you, this would have been your last time you ever had sex?!!!”
Boy – “Listen dude, you were coming… She was coming…. and I was coming…. then I realized ….only you had brakes.”