Dilbert sits at his desk with paper and a calculator. Dilbert says, "Ah hah! Just as I suspected." Dilbert shows Dogbert a piece of paper and says, "Here it is: mathematical proof that attractive single women exist only in white Volkswagen Rabbits and aerobics classes." Dogbert asks, "How do you explain Vanna White?" Dilbert says as he walks away, "I wonder if Isaac Newton had a dog." Dogbert adds, "Or a girlfriend."