No, no, you don't. I'm not taking any more chances. You can only fool a Firefly twice.
4 seconds sound clip from the Duck Soup (1933) movie soundboard.
You can hear this line at 00:31:57.191 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, Your Excellency, I must speak to you!
- No, no, you don't. I'm not taking any more chances. You can only fool a Firefly twice.
- This time you ride in the sidecar.
- This is the only way to travel.
- Hey, Pinky, come here. Watch the stand.
- I deeply regret the unfortunate affair with His Excellency, but his attitude left me no alternative.
[...]