Well, you can't be too careful, man.
4 seconds sound clip from the In the Heat of the Night (1967) movie soundboard.
You can hear this line at 01:36:02.781 in the Blu-ray version of the movie.
Quote context
[...]
- Because Colbert was killed here, then driven back to town in his own car and dumped on the streets.
- Sam couldn't have driven two cars.
- You know, Virgil, you are among the chosen few.
- Well, I think that you're the first human being that's ever been in here.
- Well, you can't be too careful, man.
- You know a lot of things, don't ya? Well, just what do you know about insomnia?
- Now, look. I got no wife, I got no kids. Boy, I got a town that don't want me.
- Now, don't you think that'd drive a man to take a few drinks?
[...]