Urban legends are our modern-day folklore. Describe a cautionary urban legend that you have heard and describe what it was supposed to caution you against. When faced with a similar situation, did the urban legend influence your decision?

Possibly one of the oldest urban legends still being told the story tells of a motorist who picks up a female hitchhiker on a lonely stretch of road. He then drives her home only to find that she has disappeared from his backseat. After knocking on her door he is told the girl died in a car accident years ago in the very same spot that he picked her up.