Well, you wanted to know whether or not they worked.
4 seconds sound clip from the Snatch movie soundboard.
You can hear this line at 01:10:10 in the Blu-ray version of the movie.
Quote context
[...]
- I'll cut him. I got a blade.
- Yeah. But how do you know? I mean, they're replicas. What do you know about replicas?
- What the fuck are you doing, Solomon?
- Well, you wanted to know whether or not they worked.
- I didn't mean try it in the car, Sol, you arsehole!
- What are you gonna do with that, pick his teeth?
- Wipe the butter off and put it away.
- Look, there's a proper blade back there.
[...]