Chalkboard: Organ transplants are best left to the professionals

This episode marks the first appearance of Cletus.

Marge: Now each of you pick a floor and get started.
Homer: I call the basement!
Marge, Bart, and Lisa: Fine!
Homer: (confused) D'oh?
(Homer opens the door to the basement and finds it cluttered with garbage)
Homer: D'OH!

Marge: (Talking about Stampy) Gosh, I thought he'd be happier in his true habitat.
Warden: Oh, I think he is.
Marge: Then why is he attacking all those other elephants?
Warden: Well, animals are not like people, Mrs. Simpson. Some of them act badly because they've had a hard life, or have been mistreated. But, like people, some of them are just jerks--Stop that, Mr. Simpson.
(The camera pans to show Homer repeatedly head butting the warden.)

Homer: Maybe if we tied it down so it couldn't move it wouldn't get so hungry.
Lisa: You can't do that, Dad, it's cruel!
Homer: Oh, everything's cruel according to you. Keeping him chained up in the backyard is cruel. Pulling on his tail is cruel. Yelling in his ears is cruel. Everything is cruel. So, excuse me if I'm cruel!