If i was that scuba diver or the octopus i will be like aghast and panicked. But also if i was the octo i will be hungry and scared but hungry mostoly. But i think hat scuba diver is trained  this kind of things. But the guy filming could not help that's evidence im tellin ya. I saw who that guys name was his name is shanx . and when this happened it was under the sea . and the sounds that i will hear is the ……...BUBBLES!!!!.....BLUB…..BLUB…..I would feel warm because i am wearing a diving suit bye