Isn't it funny
Isn't it funny how Richie was always afraid of getting hit by the Fonz early in the series even after they were friends. (Like when Richie thought he caught mono from Fonzie's girlfriend, etc), but then late in the series, Richie punched Fonzie in the face and Fonzie wouldn't hit him.
Frasier: "Don't stare at me Eddie. I'm a humane man, but right now I could kick a kitten through an electric fan!"