If you ever order whole octopus anywhere in Asia, be sure you can identify a blue ringed octopus. They occasionally (very rarely) end up on a dinner plate, and their venom will still be potent. If you do happen to be stung (actually bitten), CPR is required until the venom wears off, which may be an hour or so. Curiously it leaves no lasting effects. ✌️🇦🇺