Lucky for you that I wasn't, you loafing hound.
6 seconds sound clip from the The Big Trail (1930) movie soundboard.
You can hear this line at 01:06:07 in the Blu-ray version of the movie.
Quote context
[...]
- Oh. Was my mother-in-law in it?
- Lucky for you that I wasn't, you loafing hound.
- Because I was with your wife, Sarah, and she gave birth to twins.
- Both.
- Oh, Mama, are they boys or girls?
[...]