- Do you mind if I sit here?
- No. Fine. No. Good. Fine. Good.

9 seconds sound clip from the Back to the Future movie soundboard.

You can hear this line at 00:44:07 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, I guess they call you Cal, huh?

- No, actually, people call me Marty.

- Oh. Pleased to meet you, Calvin.

- Marty.

- Klein.

- Do you mind if I sit here?

- No. Fine. No. Good. Fine. Good.

- That's a big bruise you have there.

- Lorraine, are you up there?

- Oh, my God! It's my mother!

- Quick! Put your pants back on!

[...]