That's a beautiful cat in the video above. I can tell that it was loved, and human and cat had a close bond. Cats need other cats, though. Cats communicate silently as well as vocally, something few humans can achieve with their cats. And cats love to squabble. It's a hobby, even. But there is always a reason. Cats do not attack without reason.
My analysis of the situation above is that the human has diabetes, and the cat attacked the disease.
