Avatar: The Last Airbender, Season 3

Zuko:
Hey, I heard you guys flying around down there, so I just thought I'd wait for you here. I know you must be surprised to see me here.

Sokka:
Not really, since you've followed us all over the world.

Zuko:
Right... Well, uh... anyway, what I wanted to tell you about is that I've changed, and I uh, I'm good now. And, well, I think I should join your group. Oh, and I can teach firebending... to you. See, I uh...

Toph:
You want to what now?!

Katara:
You can't possibly think that any of us would trust you, can you?! I mean, how stupid do you think we are?!

Sokka:
Yeah, all you've ever done is try to hunt us down and capture Aang.

Zuko:
I've done some good things. I mean, I could've stolen your bison in Ba Sing Se, but I set him free. That's something.

[Appa licks him from behind]

Aang:
Appa does seem to like him.

Sokka:
He probably just covered himself in honey or something so that Appa would lick him. I'm not buying it.

Zuko:
I can understand why you wouldn't trust me, and I know I've made some mistakes in the past.

Sokka:
Like when you attacked our village?

Katara:
Or when you stole my mother's necklace and used it to track us down and capture us?!

Zuko:
Look, I admit I've done some awful things. I was wrong to try to capture you, and I'm sorry that I attacked the Water Tribe. And I never should've sent that Fire Nation assassin after you. I'm gonna try to stop him-

Sokka:
Wait, you sent Combustion Man after us?!?!

Zuko:
Well, that's not his name, but...

Sokka:
Oh, sorry. I didn't mean to insult your friend.

Zuko:
He's not my friend!?

Toph:
That guy locked me and Katara in jail and tried to blow us all up!

Zuko:
... [to Aang] Why aren't you saying anything? You once said you thought we could be friends. You know I have good in me.