Yeah, it certainly is.
3 seconds sound clip from the Meet John Doe (1941) movie soundboard.
You can hear this line at 01:29:33 in the DVD version of the movie.
Quote context
[...]
- When they do, I get mad, I get boiling mad. Right now, I'm sizzling.
- Lighthouses, John. Lighthouses in a foggy world.
- Listen, pal. This fifth column stuff is pretty rotten, isn't it?
- You'd feel like an awful sucker marching in the middle of it, wouldn't you?
- You! You wouldn't know because you're gentle.
- But that's what you're doing. You're mixed up with a skunk, my boy. A no-good, dangerous skunk.
- You're not talking about Mr. Norton, are you?
- I'm not talking about his grandfather's pet poodle.
[...]