I've got a better plan.
2 seconds sound clip from the The Invisible Man (1933) movie soundboard.
You can hear this line at 01:00:09.281 in the Blu-ray version of the movie.
Quote context
[...]
- You see, it covers a fairly wide range.
- I've got 20 of these guns and a good man to each.
- One splash of this on his skin, and we've got something to follow at last.
- Why not paint the top of the wall?
- They think they're very clever.
- All right, take him straight inside.
[...]