But we only use that to make fireworks...

3 seconds sound clip from the You Can't Take It with You (1939) classic radio play.

You can hear this line at 00:37:31 in the radio play.

Quote context

[...]

- Aw, but I didn't mean anything!

- Oh, you didn't, eh? Well, listen!

- 'Watch for the Revolution! The Red Flag Will Sweep the Country!'

- Radicals! They're radicals!

- But I didn't mean...! Shut up!

- Hey, Chief! Chief! You were right, Chief! They've got enough gun powder down in that cellar to blow up the whole city!

- But we only use that to make fireworks...

- Shut up! Everybody in this house is under arrest!

- What's that?

- Oh, my heavens!

- Look here, officer, this is all nonsense.

- Excuse me, Officer, but I've got to go down in the cellar!

- Oh, no you don't!

[...]