Malcolm: Reese, don't- You stupid jackass. You don't know what you're doing!
Lois: That is enough out of you! Are you really so insecure that you can't stand anyone else getting any attention? Your brother has worked so hard to make this yard sale a success, he doesn't need you undermining him at ever turn.
Malcolm: Mom, you have to listen to me. We have a Nortair 680b. It's a type of computer that was built in 1976. There's only a few in existence. And Craig is going to give us $1,300 for it.
Lois: $1,300? Oh, my God.
[Reese smashes the computer over his leg]
Lois: What are you doing?!
Reese: I have a lot of things to sell, and I don't have time to argue with this bozo. I've got a Jet Ski on hold, and the place closes at 6:00.
Lois: What are you talking about?
Reese: I'm buying a jet ski with my yard sale money.
Lois: That money isn't yours. It's going to rebuild our bedroom wall.
Reese: But you said I was in charge. That means I get the money!
Lois: No, it doesn't.
Reese: Then why the hell would I want to be in charge?
Lois: Reese, this is helping you become a better person by building your self-esteem, which you are obviously going to need if you are stupid enough to throw away $1,300 that this family desperately needs!