The Korean raw baby octopus, or Sannakji, is deadly because even after it has been chopped up into small pieces, it will still wiggle. This food would be the equivalent of a toddler choke hazard: Even when the limbs have been removed from the body and smothered in sauces, its suction cups still have gripping power. Imagine the cups latching onto your mouth and throat and causing asphyxiation. Not fun.
Where to Try it Safely Prepared: Noryangjin Fish Market in Seoul, South Korea.