Before you freak and and think I’m a monster for eating 산낙지 (Sannakji), otherwise known as live octopus, let me tell you something: it’s not really alive. Well, it’s alive when it gets to the table, but then the server chops it up into bite-sized pieces. The pieces squirm around for about 20 minutes afterward.
To avoid any life-threatening consequences, you need to make sure to soak the tentacles in sesame oil and chew carefully.
I would write more, but I think the video says it all.