Avatar: The Last Airbender, Book 1: Water

Katara:
How's warrior training going?

(Sokka makes an angry noise and flops down on his bed)

Aang:
That bad?

Sokka:
No, it's Princess Yue. I don't get it; one minute she wants to go out with me, the next she's telling me to get lost! So, how's waterbending training?

(Katara makes an angry noise and flops down on her bed)

Aang:
Master Poop-head won't teach her because she's a girl.

Sokka:
Why don't you just teach her, Aang?

Katara:
Why didn't I think of that? At night, you can teach me whatever moves you learned from Master Pakku. That way, you have someone to practice with and I get to learn waterbending. Everyone's happy!

Sokka:
I'm not happy.

Katara:
But you're never happy. Come on, Aang.