Me: "Boys... it's now Last Call For Food. However, your mother is baking cookies. So if you want to wait until their done, I'm prepared to offer you a cookie-based extension."
Secondborn: "I want a cookie!"
Firstborn: "What kind of cookies are they?"
Firstborn: "But what kind are they?"
Me: "Garlic and onion sugar cookies with bacon frosting."
On a related note, Firstborn has a remarkably eloquent and well-practiced face-palm gesture.