The Basement

Listen here, smarty pants, this ain't rocket science! The joke is about the basements and kids. The joke compares the room of the house and suggests turning it into the basement. Then the author finishes the joke with the punchline of putting children inside the basement, which implies that the author of this "amazing" joke wants to kidnap or lock up children. I bet you didn't even know that basements are often underground, where you can't see or hear anything, ya dummy! People like you are the reason they put instructions on shampoo bottles.