Homewreckers, that's what they are.
3 seconds sound clip from the Lady and the Tramp (1955) movie soundboard.
You can hear this line at 00:23:13 in the Blu-ray version of the movie.
Quote context
[...]
- Just a cute little bundle... of trouble.
- Yeah. They scratch, pinch, pull ears... Ah, but shucks. Any dog can take that.
- It's what they do to your happy home.
- Move it over, will you, friend?
- Homewreckers, that's what they are.
- Look here. Who are you to barge in?
- The voice of experience, buster.
- You start barking at some strange mutt.
[...]