Because there's one thing about these old-timers. They don't like any fucking around with the other guys' wives. It's bad for business.
9 seconds sound clip from the Casino (1995) movie soundboard.
You can hear this line at 02:22:18 in the Blu-ray version of the movie.
Quote context
[...]
- I want you to tell me the truth, mind you.
- I always tell you the truth, Remo.
- So I lied, even though I knew that by lying to Gaggi, I could wind up gettin' killed too.
- No, I ain't seen anything like that.
- Remo, things are very fucked up down there.
- I know. That's why I'm asking.
[...]