Well, to be perfectly honest, madam...
5 seconds sound clip from the A Clockwork Orange movie soundboard.
You can hear this line at 00:41:23 in the Blu-ray version of the movie.
Quote context
[...]
- Naughty, naughty, naughty! You filthy old soomaka.
- Now listen here, you little bastard!
- Just turn round and walk out of here the same way as you came in.
- Leave that alone! Don't touch it! It's a very important work of art.
- What the bloody hell do you want?
- Well, to be perfectly honest, madam...
- Cut the shit, sonny and get out of here before you get yourself into some very serious trouble.
- I told you to leave that alone!
- Now get out of here before I throw you out!
[...]