No! No!

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

You can hear this line at 01:44:23 in the Blu-ray version of the movie.

Quote context

[...]

(TIRES SCREECHING)

- Libyans.

- No! You bastard! (2)

- Go! (3)

- Doc! Doc!

- No! No!

- You're alive.

- Bulletproof vest?

- How did you know?

- I never got a chance to tell you.

[...]