Unless, of course, they can explain what they were doing there.
5 seconds sound clip from the You Can't Take It with You (1939) classic radio play.
You can hear this line at 00:46:07 in the radio play.
Quote context
[...]
- Very well. But, quietly, please.
- Ah, you're a lucky man to have so many friends.
- Now, gentlemen, I'd like to dismiss the charge of disturbing the peace against the Kirbys.
- But if these people were guilty, then I must assume the Kirbys were guilty, too.
- Unless, of course, they can explain what they were doing there.
- I don't see that that's important! Haven't we been embarrassed enough?
- Your Honor, if I may say something?
- These people just dropped in to see me about buying my house.
- Why... why, why, of course! That's all we were there for!
[...]