Foward your phone number to your favorite Chinese take out place for a few hours a day.
That'll screw his head up good and solid.
You can also variate between a chinese food place and a Indian food joint just to add another layer of anguish to the caller's attempts to mess with you.
When someone fucks with you, fuck with them back .... Technology is a beautiful thing to use when it comes to screwing with people from afar.
