Francine: Stan, have you been eating the cookie dough again?
Stan: Why, is there still some on my face?
Francine: No.
Stan: Then no.
Stan: Why, is there still some on my face?
Francine: No.
Stan: Then no.
Francine : Stan, have you been eating the cookie dough again?
Stan : Why, is there still some on my face?
Francine : No.
Stan : Then no.
http://www.tv-quotes.com/shows/american-dad/quote_16450.html