Well, I waited. Took so long I thought he'd gotten buck fever.

5 seconds sound clip from the X Minus 1 - A Gun for Dinosaur by L. Sprague de Camp classic radio drama series.

You can hear this line at 00:13:27 in the radio play.

Quote context

[...]

- Well? Ah, nuts! I've had enough of this.

- James! Don't!

(TWO LOUD GUNSHOTS)

- I got him clean! Right through the heart! First shot! How was that?

- I thought you were going to give Holtzinger the first crack? It's his turn.

- Well, I waited. Took so long I thought he'd gotten buck fever.

- Very well. But if this sort of thing happens once more, we leave you at camp the next time we go out.

- The next couple of days we trekked around the neighborhood. And then headed over to the sauropod swamp, over to the west.

- We were staked out along the edge of the lake, watching a big beggar out in the swamp, waving his head about.

- And they're the big ones. They look something like the Brontosaur.

[...]