DH got a cold call from some guy once when he was in just the wrong mood. The guy started asking him what stocks he owned and DH said, "None of your business."
That stopped the guy cold. "What?"
"Seriously. None of your business."
Guy evidently was in just the wrong mood as well and said, "Well, what makes you say that?"
"OK, then you share with me. How often do you play Scrabble with your wife?"
"I'm not married."
"OK, fine. How often do you play Scrabble with your hand?"
"Well, heck don't let me keep you. Sounds like you've got stuff to do. Bye."
That wasn't all! The guy called him AGAIN late that evening, evidently with a few beers under his belt, and said, "Hey, Mr. Pinky! Guess what I'm doing?"
DH couldn't think of anything to do but laugh.