Gentlemen, this is the last straw.
2 seconds sound clip from the Duck Soup (1933) movie soundboard.
You can hear this line at 01:01:46.308 in the Blu-ray version of the movie.
Quote context
[...]
- There's a machine gun nest near Hill 28. I want it cleaned out.
- All right, I'll tell the janitor.
- Message from the front, sir.
- Oh, I'm sick of messages from the front. Don't we ever get a message from the side?
- General Smith reports a gas attack. He wants to know what to do.
- Tell him to take a teaspoonful of bicarbonate soda, and a half a glass of water.
- No, sir.
- Well, in that case, don't send that.
- Gentlemen, this is the last straw.
- I'll show them they can't fiddle around with old Firefly.
- Look at them run. Now they know they've been in a war.
- But, sir, I've got to tell...
- Remind me to give myself the Firefly Medal for this.
- Your Excellency, you're shooting your own men.
- What?
- You're shooting your own men!
- Here's $5. Keep it under your hat. Never mind. I'll keep it under my hat.
[...]