You will be a decided improvement over that treacherous Sally.
8 seconds sound clip from the The Nightmare Before Christmas (1993) movie soundboard.
You can hear this line at 00:41:00 in the Blu-ray version of the movie.
Quote context
[...]
- I'm very sorry for the inconvenience, sir.
- Take him home first. And apologise again!
- Be careful with Sandy Claws when you fetch him! Treat him nicely!
- Got it!
- We'll get it right next time!
- You will be a decided improvement over that treacherous Sally.
[...]