- Ah, this kid's too good for me.
- Let's see how good he is.

4 seconds sound clip from the Stalag 17 movie soundboard.

You can hear this line at 01:23:30.175 in the Blu-ray version of the movie.

Quote context

[...]

- The men will cheer and the boys will shout, the ladies they will all turn out and we'll all feel gay when Johnny comes marching home.

- When Johnny comes marching home again, hurrah! Hurrah! We'll give him a hearty welcome then, hurrah! Hurrah! (3)

- Oh, the men will cheer and the boys will shout, the ladies they will all turn out, and we'll all feel gay when Johnny comes marching home.

- When Johnny comes marching home again, hurrah! Hurrah! We'll give him a hearty welcome then, hurrah! Hurrah! (4)

- The men will cheer and the boys will shout, the ladies they will all turn out, and we'll all feel gay when Johnny comes marching home. (2)

- Ah, this kid's too good for me.

- Let's see how good he is.

- Same stakes?

- Sure, go ahead.

- Hey, that's not bad.

- Where'd you learn your pitching?

- From the farmer's daughter.

- Something I've been meaning to ask you. It has to do with security.

- Shoot.

[...]