You don't know how lucky you are that maniac didn't whack you.
4 seconds sound clip from the Demolition Man movie soundboard.
You can hear this line at 00:52:51 in the Blu-ray version of the movie.
Quote context
[...]
- The name Friendly. Mr. Edgar Friendly.
- Don't you have someone to kill?
- Excellent. Then go and do your job.
- Damn!
- You don't know how lucky you are that maniac didn't whack you.
- Well, I must say that whacking, whatever it is, sounds most disagreeable.
- Well, you scared him away. I don't know how to thank you. You saved my life.
- Simon Phoenix knows he has some competition.
[...]