OH< do I have the answer!!
One of my dear friends was getting some horrible calls from some nut who could obviously see her house, since he commented on when her teen daughter left the house. (This was before Caller Id,)
Another friend and I were visiting when she got "That" call and just stood there, she was forced to listen. So my other friend grabbed the phone and cooed at him, saying "Oh, you poor dear man, you must need Jesus in your life" and she preached at him and didn't give him time to say a thing till he hung up. She later recorded this on a little machine and gave it to our frightened friend, who played it as soon as she recognized this nut's voice. And yes, the police were called but could do little for her. But this recording did the trick, he finally got tired of calling and she wasn't bothered any more.