You're going at it all wrong, son. You're just a beginner. You gotta start small and work up. You can't start at the top.
7 seconds sound clip from the Foghorn Leghorn - Henhouse Henery (1949) Warner Bros. Merrie Melodies theatrical short.
You can hear this line at 00:02:06.980 in the DVD version of the film.
Quote context
[...]
- What's the big, I say, what's the big idea? Don't stand there gawking, son. Speak up!
- Why hit me on the noggin? Speak up!
- Now, I say, cut that out! What's it all about, boy? Elucidate!
- I'm a chicken hawk and you're my victim. Are you gonna come quiet or do I have to mess you up?
- Chicken hawk? Ha, ha, ha, ha.
- Pay attention, son. Now, get one nearer your size. A little one first. Now, run along, boy.
- Nice kid, but he's getting too big for his britches.
- Kids nowadays, they know it all.
[...]