Down Dakota Way (1949)
[Pat's bloodhounds dig into what appears to be a grave]
Sparrow Biffle: Hey, what's that? Salt?
Roy Rogers: Quicklime!
Sparrow Biffle: What would quicklime be doin' out here?
Roy Rogers: It's usually used to destroy something... Look! A cow's hoof!
Sparrow Biffle: I wonder where the rest of the cow is.
Roy Rogers: I imagine it's attached to the hoof.
[while on the trail of a wanted fugitive, Roy and Pat stop to tend to a sick calf]
Saunders: You don't take a hint very well, do you, Rogers? You're on McKenzie property. Hope you have permission.
Roy Rogers: Sorry, we didn't have time. We're on a manhunt.
Saunders: Looks to me like you're on a calf hunt. I'd say you were doin' a little rustling!