I am probably more sensitive to noticing people do stupid and/or crazy things with their hands. Being that I was born with only one arm, I try to take care of the only one I have left. However, I'm left wondering what this guy was thinking, shoving his hand in a fish that has a mouth full of razor sharp teeth. I can't understand their language, but I do believe this is a Monk fish and he's saying "it hurts". Check it out.