As for you giving yourself pious airs about your motherhood, well a cat's a better mother than you are.
7 seconds sound clip from the Gone with the Wind (1939) movie soundboard.
You can hear this line at 03:21:27 in the Blu-ray version of the movie.
Quote context
[...]
- You'll never take my child out of this house.
- If you were a man, I'd break your neck for that. As it is, I'll thank you to shut your stupid mouth.
- You have her things packed and ready for me in an hour, or I warn you...
- I've always thought a good lashing with a bunny whip would benefit you immensely.
[...]