Ladies and gentlemen, this has been a prairie fire.

5 seconds sound clip from the Meet John Doe (1941) movie soundboard.

You can hear this line at 01:09:03 in the DVD version of the movie.

Quote context

[...]

- When John Doe gets strong enough, we'll find out what he wants.

- Thirty every Thursday, sixty at sixty!

- Who knows what?

- Sorry, boss, they just won't let anybody talk politics with him. It's crazy.

- We've got to get to them. They represent millions of voters.

- Ladies and gentlemen, this has been a prairie fire.

- We receive so many applications for charters for the John Doe clubs that we haven't been able to take care of them.

- I'd hate to have that many pins stuck in me.

- This John Doe convention is going to put our city on the map.

- 2400 John Doe Clubs are sending delegates. You imagine that?

[...]