Grampa: Look what your bad egg of a son did to my teeth!
Homer: Dad, you and your stories. “Bart broke my teeth.” “The nurses are stealing my money.” “This thing on my neck is getting bigger.”
Marge: Now this is exactly what Bart’s teacher was talking about. Our son did something wrong and you look the other way.
Homer: But Marge, look at that hangdog expression. He’s learned his lesson. Let’s get him a present.