A young man had a girlfriend. He was getting tired of her because she sent him messages every hour that said "I miss you" or "I love you". One night before bed he received a message, but rather than read it he went to sleep. In the morning he was awakened by a call. It was the mother of his girlfriend, crying to him that his girlfriend had died last night.
He hung up the phone in a state of shock, went to read the message: "My sweetheart, come quickly, I think someone is following me!".