Shh! Don't even say his name. You don't want his help.
7 seconds sound clip from the Beetlejuice movie soundboard.
You can hear this line at 00:36:17 in the Blu-ray version of the movie.
Quote context
[...]
- Start simply. Do what you know. Use your talents. Practice.
- You should have been studying those lessons since day one.
- What about that guy in the flyer, Betel...?
- Shh! Don't even say his name. You don't want his help.
- He does not work well with others.
[...]