i just wanna say, in that video when it first tried to bite, i highly doubt its because of the camera. it was because you stood up too quickly and shocked him.
remember they cant see well, so moving around at that kind of range is gonna worry him, as he can tell that theres something big and warm infront of him, but cant see in detail where your going or what your doing. for all it knows, any sudden movement like that by you could be an attack lunge by a big cat or something lol, and ofcourse itll hiss out.