He was just hungry. He thought you wanted him to bite you, idiot. Just watch a bird hopping around sometime. They check out everything with their beak. See if its edible. Next time tell the Octopus it is just a picture lol.
Reminded me of a Henry the Chick Hawk cartoon when he had a "Look what I caught" moment:
Which also brought to mind a scientist who said that back in the days when ankle bracelets were in vogue, he waded in the surf at some South Pacific atoll. He felt something slam his leg, looked down and saw a small squid who had hit the shiny object.
That Henry cartoon came to mind as I could see the squid dragging the guy home, proudly saying "Hey dad . . ."