Not to touch books.
3 seconds sound clip from the Rain Man (1988) movie soundboard.
You can hear this line at 00:23:21 in the Blu-ray version of the movie.
Quote context
[...]
- This is an unannounced visit, Vern. This is definitely not a weekend visit, Vern.
- He's getting anxious. It's okay, Ray!
- This is an unannounced visit, Vern.
- Put it back. He said not to touch the books.
[...]