No, Bob, that's bad.

3 seconds sound clip from the The Incredibles (2004) movie soundboard.

You can hear this line at 00:17:48 in the Blu-ray version of the movie.

Quote context

[...]

- Bob, could you help the carnivore cut his meat?

- Dash, you have something you wanna tell your father about school?

- Well, we dissected a frog.

- Dash got sent to the office again.

- Good. Good.

- No, Bob, that's bad.

- What?

- Dash got sent to the office again. (2)

- What? What for?

- Nothing.

[...]