Gir: Can I play on lampposts and swim in laundry detergent?
Zim: If you must. Stay out of trouble though.
Gir: Okey-Dokey!!! BYE!! (jumps through the window shattering the glass)
Zim: As if that's possible… (goes to the labs)
Meanwhile, in Dib's house at 4:30pm:
Dib: What's Zim up to!?
Gaz: Stop asking me! How would I know anyway?
Dib: I've just got to know Gaz!
Gaz: He's probably sleeping right now so the tooth fairy will come earlier.
Dib: Don't tell me you believe in it too!? What's wrong with the world!!?
Gaz: What's wrong with you?
Dib: Everyone at school believes there's really a tooth fairy!! Does that make sense?
Gaz: Remember how you said there was no lice queen? You were wrong about that.
Dib: Yeah but-
Gaz: You were still wrong.
Dib: No! This is different!
Gaz: Why?
Dib: I don't know, but I'll tell you when I find out! I'm going to Zim's base to see what he's doing. Tape the Mysterious Mysteries episode will ya'? (runs out and slams the door)
Gaz: Not if my life depended on it.