Son! Hey, I just told you that even a baby could handle this weapon. Surely you're not afraid to try something that a baby could do.

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

You can hear this line at 00:53:53.197 in the DVD version of the movie.

Quote context

[...]

- Good evening.

- Evening.

- You look very nice.

- Thank you.

- Would you like... Would you care to...

- I'd love to.

- Young man, how about you? You want to give it a try?

- No, no. No, thanks. Hey, Doc, this...

- Son! Sonny boy!

- The Doc can dance?

- Son! Hey, I just told you that even a baby could handle this weapon. Surely you're not afraid to try something that a baby could do.

- Hey, I'm not afraid of nothing.

- Come on, then. Let's just step up here like a man.

- Now, then what you do is you just ease that hammer back there, and squeeze off a round.

- No, no, no! Right on out there and be real smooth. That's the way you do it.

- Listen, can I try that again?

- Yeah, go ahead.

[...]