Me: No, but I can beat up your dad (plus I have a Nanna that if you swear she'll beat you for DEAD like with a coworker of hers who said to another person "P*ss off!") But I can beat up your dad
This happened to me once, and i scoffed at the person who said it. They asked why i scoffed and I just said, "Good luck finding that guy, he's been gone since i was 5!"
I was never told that phrase again-