Jack won't do me any harm.
2 seconds sound clip from the The Invisible Man (1933) movie soundboard.
You can hear this line at 00:47:13.422 in the Blu-ray version of the movie.
Quote context
[...]
- I shall go and prepare myself in my room.
- He wants to see Flora alone.
- I tell you, he's insane. It's for us to cure him, Kemp and I. Keep away, Flora.
- Listen, Doctor, he was a different man when he saw Flora leave the car. He won't hurt her.
[...]