DuckTales, Season 1

Huey:
How do you know this is mom's?

Dewey:
I've, uh, kinda been researching her on my own. A little. I mean, I just searched a forbidden library, crashed the Sunchaser, talked to the goddess Selene- okay, you know, hearing it out loud, it comes off way worse than it sounded in my brain.

Huey:
How could you keep this from us?!

Dewey:
I was trying to protect you from a potentially devastating revelation.

Huey:
Or you just kept it to yourself so you can feel special! Classic Dewey! She's our mom!

Dewey:
Okay, it's just- First, I didn't tell you because I didn't want you to get hurt. Then I couldn't tell you because I found out all this stuff and I didn't want you to hurt me! I'm sorry, okay?

Huey:
You're only sorry, 'cause you got caught!

[they notice Louie holding the uniform, visibly upset]

Dewey:
Louie, you okay?

Louie:
You kept a secret about mom. That is not okay.

[Dewey shifts his head down sadly]