Two of those sharks are not great's. I ve seen the discovery channel show on this also.
I dont really know what I think about that guy, I dont agree with shark telepathy though. But as far as getting in the water with any of those sharks.. I wouldnt call it brainless. When dealing with any wild animal there is always the risk of them hurting or killing you, no matter how well you do or dont know the animal. I used to surf (shark bite capital of the world) with all kinds of sharks (hammer heads, bulls, tigers, spinners, lemons etc.) knowing they were right under me - but I wouldnt call myself braniless lol, maybe crazy.