I have thought of the perfect prank to play on the Utahraptor! I will confide in him personal stories about my youth...
... stories that, it turns out, are false!
That way, years down the road if he ever chances to mention one of these stories, I will be able to say, "Got you!"
He'll say, "What?", obviously confused since my prank was years in the making. But once i explain that I was in fact LYING to him when he though he had my number, he will laugh heartily and concede that I did indeed "get him"!
Hi, T-Rex! Do you have any personal stories of your youth you'd like to confide in me?
I do!
These stories wouldn't happen to be FAKE stories, would they?
um
T-Rex! Were you going to tell me fake stories?
You were!
Hoisted by my own petard!