Humans take a different approach. Sure, some cultures choose to cook their octopus before eating it. But that's not true everywhere. Koreans eat their cephalopods raw and semi-alive. Sannakji is a way of preparing octopus that involves cutting off the tentacles from a live octopus or even eating a whole (tiny) animal in one go. A handful of people die eating it every year, because the tiny arms are still wiggling and will try to crawl back out of your throat. To avoid death, you're supposed to chew the pieces enough to disable the lil' suckers. Or, you know, just don't eat something that's actively trying to escape your mouth. Either way.