Oh, Shh, Shh, Shh! It's our little secret.
4 seconds sound clip from the Finding Nemo movie soundboard.
You can hear this line at 00:29:09 in the Blu-ray version of the movie.
Quote context
[...]
- Sorry if I ever took a snap at you. Fish gotta swim. Birds gotta eat.
- Hey! No, no, no! Those aren't your fish. They're my fish. Come on. Go! Go, on! Shoo! Shoo!
- This here's Darla. She's my niece. She's gonna be eight this week.
- Oh, Shh, Shh, Shh! It's our little secret.
- Well, Mr. Tucker, while that sets up, I'm going to go see a man about a wallaby.
- What? What's wrong with her?
- She wouldn't stop shaking the bag.
- He was her present last year.
[...]