That's impossible. We already did step out of the chamber and nothing happened.
7 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 00:25:14 in the radio play.
Quote context
[...]
- We tried to warn him but he insisted.
- Yes, I know. He's a headstrong chap.
- Still, you wouldn't think he'd chance it just for the sake of a wallet.
- Yes. He had a three-seventy-five Express.
- Three-seventy-five? That's odd. He's knows it's too light for dinosaur.
- Yes, but not too light for a man!
- That's impossible. We already did step out of the chamber and nothing happened.
- Yeah, but that was before Mr. James was waiting with an Express rifle cocked. Hey, doctor?
- You mean, he's... he's planning to murder the two of you?
- I wouldn't be a bit surprised.
- I don't suppose there's anything you could do to stop the process now?
- No, it's too late. The chamber's in transition now.
[...]