- Will you have some, Homer?
- I'd better not, Al. I might give the wrong answers.

4 seconds sound clip from the The Best Years of Our Lives (1946) movie soundboard.

You can hear this line at 02:42:23.357 in the Blu-ray version of the movie.

Quote context

[...]

- I'll stand up for you, kid, till I drop.

- Oh, Fred, here's the ring. Don't lose it.

- Hi, Homer. Big day, huh?

- Hi, Al.

- Hi, Fred.

- Hello, Al.

- I hear you moved back with your folks.

- Yeah.

- I've been sampling the punch. I presume it was made for the kiddies.

- Will you have some, Homer?

- I'd better not, Al. I might give the wrong answers.

- How about you, Fred?

- No, thanks. Maybe later.

- Well, if I must be a solitary drinker, good luck, kid. Thank you, Al.

- Al. You promised you wouldn't.

- Now, listen, darling. You just take a sip of this and you'll realize there isn't a headache in a barrel of it.

[...]