(When Katara is about to get arrested for earthbending and she and Sokka are setting up the trick)
Sokka: You know, I thought you were crazy at first, Katara, but this might actually work. There are ventilation shafts throughout the mine. All Aang has to do is send air through that vent to this vent, and, ta-da! Fake earthbending!
Katara: Aang, did you get all that?
(Screen shifts to see Aang air at a butterfly)
Aang: Sure. Sure. I got it. (keeps playing with the butterfly) Just relax. You're taking the fun out of this.
Sokka: By this, do you mean purposefully being captured by an army of ruthless firebenders?
Aang (Keeps playing with the butterfly): Exactly. That's fun stuff.