Hey, take a look at this.
2 seconds sound clip from the Attack of the Crab Monsters (1957) movie soundboard.
You can hear this line at 00:45:00.097 in the DVD version of the movie.
Quote context
[...]
- Kill it?
- It's easier said than done, Hank.
- Now wait, this needs some thought.
- Doctor, you're not going to suggest that we save it for science. That would be suicide.
- No thank you, Martha. I have no ambition toward becoming a mad scientist.
- But I do think we ought to try and capture the thing. Would you not like to examine a live specimen?
- Certainly, I would. But I had a chance to see how the specimen examined the lab wall last night.
- You said something about the crab being afraid of electricity, doctor. Let's find out.
- Ashes! The electricity destroyed the leg in less than a second.
- That proves that the crab is negatively charged.
- Yes. Then, Hank, you must create a trap of positive energy.
[...]