Really? Oh, that's great, Dad. How can I ever repay you? Punc...
(Grampa suggests that Homer should go see Professor Frink to help him remember what happened the night before.)
Homer: Really? Oh, that's great, Dad. How can I ever repay you?
Grampa: Punch that orderly who takes sips out of my juice.
(Cut to Homer punching an orderly who is about to make a bed.)
Grampa: No, wait. That's the guy that saved my life.