That's a neat video. They are so curious and playful and totally smart.
I read somewhere in the net that a pod attacked a 34 ft (?) sailboat sinking it. I know there's more to the story-I've been in small dingys as close as you can be and never once did I feel threatened. Not saying I would jump in the water with them. What's scary is if your in the water with two big turtles that are trying to have a "private moment" (called turtle rape) and one of them breaks off and charges you. Been there and the one will charge you right up to the last possible chance to turn and when he or she does it you feel the current right across your facemask. Something goes quicker inside of you. LOL