Legends have circulated for years about a vanishing htichhiker. A man driving along a busy motorway sees a hitchhiker and stops. The hitchhiker gets in and announces the End of the World. The man says he is an angel, the driver looks round at him incredulously, and at that very moment there is no one there - he has dissolved into thin air.
The driver stops the car, looks around him, and sees a police car approach. "You are by no means the first to tell me this story," says the officer when the driver tells him his tale.
In this story, the driver just picks up a hitchhiker. Wait for it.