It may have been this:

"Adding salt to freshly cut muscle causes it to spasm." https://www.youtube.com/watch?v=pCeA72UFg3Q

No, it was a dancing squid corpse video, but ..... Thanks? :(

Not a vegetarian but needless cruelty is repellent.

If you watched the video they explain that the animal’s brain has already been removed, so anything after that is not felt by the squid.

I can see why it messes with our intuitions, though. Most of the other animals we eat don't flop around like that unless they're still alive and in distress. Except the occasional headless chicken. Chickens are weird.

Yes, which is a great wait to reveal someone who does it to make themselves feel better vs the actual welfare of the animal.

It's dead.

It wasn't always dead. It was caught, killed, and its brain was removed. And then its corpse was made to flail about wildly in a bowl. I find it, if even only the last part, creepy.

Once the animal is dead, I don't see how there's any cruelty involved. You are welcome to find it creepy, or object to the killing of the animal in the first place, but it's certainly not feeling pain by having its corpse being made to dance around.

Sorry, I thought you were replying to me, but you were replying to that other comment. I agree that the dead are spared cruelty, and this wouldn't be considered cruel.