Doubtful SIL caused it. Sammy is high-strung and he has grabbed my hands too, but never actually bit them. He gets excited and it's always been playful. Kinda like he takes my fingers with his open mouth, then stops himself, like it's an oops, I didn't mean to do that kind of thing. His teeth are not sharp and he's never done it to me in a snappy way. But I never ignore it, I let him know he is NEVER, under any circumstances to take human flesh in his mouth. It only happens very rarely. He is still a little feral and somewhat dominant so I try to keep a handle on it.