Dr. Kelso: Oh, so you're going to sock me again. Good God, Perry, at a certain point you're just beating up an old man.
Dr. Cox: Relax. I'm just fixing your nose. Now, I'm real sorry I cold-cocked you, there, Bob. I shouldn't have done that. Even if it did actually feel so damn good I changed my pants afterwards. But, still, I'm starting to think it would be smart if you and I were to bury the hatchet. What do you say, there, Bob? Come, on, handsome!
Dr. Kelso: Listen up, ace: You will always be a royal pain in my ass, and I will always be waiting for the day when I get to jam that knife into your side once and for all, and you know it as well as I do! [Dr. Cox fixes Kelso's nose] Much better, thanks!
Dr. Cox: You're welcome.
Dr. Kelso: People don't change, Perry.