When I lived on Jeju Island, Korea, cuttlefish (similar to squid) was a staple, with octopus a close second. I ate many mysterious fishy and seafood things. That was fine. But I was dismayed when a friend took me to a fish restaurant and I was served fish head soup; the head was considered the best part.
In the college cafeteria they sometimes served a pile of teeny tiny fish, heads and all; someone said they were anchovies.
My Russian coworker kept saying they were “tasty,” so I broke the heads off a couple and tried them. They tasted okay, but I don’t eat heads and eyes. She got mad and I gave up.
But eating live shrimp and live fish–a delicacy–no thanks. Even though I admit you can’t get it much fresher than that.