Transcript:
Nate: Even if I WANTED to wear my hair a different way, I couldn't! My hair resists change.
Francis: What do you mean?
Nate: Go on...try to run your comb through it.
Francis: Okay.
PTOOEY!
Francis: "Ptooey"?
Nate: I have a very willful head.
But he changed it for Halloween one year.