ANFSTD

A man is sitting in a restaurant and he hears someone say to him, "Hey, that's a nice tie you got there!".  The man starts, looks around and sees nobody talking to him, so he brushes it off.  A few minutes later, he hears a voice again, this time saying, "I love your jacket!".  The man looks around again and sees no one speaking to him.  Still later he hears yet another voice saying to him, "I like your hair!".  The man is so sure that he is hallucinating by this point.  So he turns to the waiter and asks him, "Who keeps talking to me?".  "Oh," the waiter says, "it's the peanuts.  They're complimentary."