Only someone spesh would likely find getting to interact with an octopus in its own environment, whilst diving on holiday, after said cephalopod shot out of it's hidey-hole in a huge sea snail shell once the shell was picked up to examine it, and clamped itself on the diver's face like a facehugger from the alien movies:P
Bet most people would freak. I thought it was an adorably cute little fella, jt seemed perfectly happy, after being very gently detached from my face, just to walk around up and down my arms and hand to hand, seemed quite curious about my scuba gear. If it weren't for the fact that octopi only live for 4-5 years at most then I'd love one as a pet, they are intelligent, curious creatures that in the right circumstances can interact with people in interesting ways. And they are well known for their smarts, coming up with all kinds of escape artistry and sneaking out of their tanks into other tropical fish tanks etc in order to feast upon the fish and molluscs etc in there, then sneaking back into their own tanks. Opening screw-top jars with their tentacles and other feats of cunning and intellect.