Your Mother Must Be Very Proud of The Work You Do
I can hardly wait for one of these a-holes to call me so I can try this. But I wanted to post what I've been doing in the past.
I go along with the caller without really putting in or out any real information and after we've been talking for a while and I can tell he's relaxed a little I change my tone completely to my best Darth Vader voice and say, "I know your Mother must be very proud of the work you do; I want you to know I've put a curse on you and all your family. A horrible curse that will follow you for the REST OF YOUR LIFE"
Usually I get stunned silence on the other end followed by some weak come back and a hang up.
Hilarious.