Last week, I took Michael (7) to get a haircut.
Michael: "I want it short on top and long in the back."
Me: "You want a mullet?!"
Michael [enthusiastically]: "Yes!"
Me: "No (f*ing) way" (parenthetical comment not spoken, but clearly indicated by my attitude.)
Michael: "Why not?"
Me: "You'll understand at your wedding when I'm showing photos of you when you were young."
Really, he'll thank me later.