Convo w/ #1 son, now a working man: "Dad, I'm running the Boston Marathon this spring."
Me (who hasn't run that far in his entire lifetime): "Why the hell would you do that?"
Wife/mom: "That sounds like good exercise, dear."
Convo w/ #2 son, college junior: "Whattayawanna hear about first: Black Holes or Theory of Mind?"
Me: "Black holes are kinda dark. I'd rather hear about that theory of yours, I think."
Wife/mom: "Not sure it's his theory, dear."