Mandy: You're gonna make me ask, aren't you?
Billy: Ask what?
Mandy: What's with all the oranges?
Billy: They're not oranges, they're tangel-elos!
Mandy: Okay... what's with all the tangelos?
Billy: Clowns hate tangelos. Messes with their equilibrium.
Mandy: Who told you that fungus?
[Oranges man walks away, whistling nervously]
Mandy: Billy, you've got to get over this ridiculous fear of clowns.
Billy: Hey! Who you calling ridi-culous? Well, what about your fear of professional figure skaters?
Mandy: That's not a fear. I just don't trust the way they spin around is all.
Billy: You gotta believe me, Mandy! Clowns are nothing but ultimate evil! They wanna become the dominant species on the planet, and they'll destroy us all to make it happen!
[shouts at the top of his lungs] Destroy us all! Destroy us all! Destroy us all! Destroy us all! Destroy us all! Destroy us all! [sitting at his desk in class with his fellow students; shouting] Destroy us all! [at the chalkboard, attempting to solve a math problem; shouting] Destroy us all! [at his locker in the hallway; shouting] Destroy us all! [in Biology class, dissecting a frog; shouting] Destroy us all! [on the swingset at recess; shouting] Destroy us all! [in the lunch line; calmly to the lunch lady] I'll take the chicken. [sitting at the lunch table with Mandy and Irwin; shouting] Destroy us all! [doing sit-ups with the other kids in gym class; shouting] Destroy us all! [in the Boy's bathroom, we see Billy's feet underneath a closed stall; shouting] Destroy us all! [getting off the bus with Mandy; shouting] Destroy us all!
[he walks home off-screen, still shouting]