Lois: What'd you do?
Malcolm: What?
Lois: Don't give me that. What'd you do?
Reese: Nothing.
Malcolm: Mom, I'm trying to study.
Lois: Oh. I'm sure you don't mind if I, uh... [opens drawer] took a look in here!
Malcolm: Mom, I'm telling you. We didn't do anything.
Lois: Oh, you boys are up to something. I can smell it. If you've broken another window, it is going to come out of your- [opens curtains]
Reese: Are you done? You want to frisk me?
Lois: You just consider yourselves lucky this time.
[As Lois walks out of the boys' room and closes the door behind her, Dewey is tied up and hanging from the coat rack. A moment later, Lois opens the door and takes another look around the room before closing it again.]
Dewey: That was close.
Malcolm: Either she's losing her touch, or we're getting better.