Greg: Hey!
Girls: What?
Greg: How many times do I have to tell you? No gum-chewing in the halls.
Girls: You never told us no gum-chewing.
Greg: I'm telling you now.
Girls: Yes, sir.
Adult Chris: [v.o.] That explains why Greg didn't get a date until he was 20.
Greg: See?
Chris: Well, if you're so good at it, why don't you become a hall monitor?
Greg: Who am I kidding? Study hall is safer. [takes out toothpick] Want this?
Chris: No, I'll get my own.