[She'd say he's a puppy, but her realm of experience is limited to a rottweiler trained to attack. She certainly never saw Porthos as a puppy, but she'd bet he'd be equally as vicious.]

He's Human.

[The real truth is that she knows she old come to trust him, which makes her all the more paranoid that he's playing a very long game with her.

The less proof she has of that, the more unsettled she is.]