Don't have to worry about that. Not with an arm off and out in that cold. He's dead now.

7 seconds sound clip from the The Thing from Another World movie soundboard.

You can hear this line at 00:44:08 in the Blu-ray version of the movie.

Quote context

[...]

- Where did you find the arm?

- It was partly under one of 'em.

- Couldn't dogs tear off an arm?

- This kind of an arm.

- Be careful, doctor. Those barbs, or whatever they are, are very sharp.

- Seems to be a sort of chitinous substance.

- Speak English, doctor.

- Something between a beetle's back and a Rose Thorn.

- Thorn-fingered, huh?

- Amazingly strong.

- Very effective if used as a weapon.

- Don't have to worry about that. Not with an arm off and out in that cold. He's dead now.

- He got along all right in the block of ice for over 24 hours.

- Pretty spry for a guy with 12 dogs on him.

- He sure was.

- After losing an arm.

- I'm losing my mind.

- Amazing, isn't it? Amazingly strong.

- Strange. I'm sure of it.

[...]