Get back! Get back, you fool!
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 00:19:09 in the radio play.
Quote context
[...]
- Look out! Look out! Tyrannosaur!
- The tyrannosaur heaved his head out of the shrubbery just in front of us.
- Get back! Get back, you fool!
- Raja can't get a shot. Confound it, there goes the beast in behind those ferns.
- Holtzinger! Come back! Your gun's too light for that beggar!
- The tyrannosaur came after them to snap them up.
- Holtzinger began to blaze away.
[...]