I have a mommy cat that I have been fostering for about 3 weeks before she gave birth to 6 healthy babies. She was a stray and warned up to us by the time she gave birth, though she has never been overly affectionate (she is sweet, just not snuggly). She has always been aggressive to my other cats even thought they are always in different rooms (she can smell them under the door and growls/hisses). Well, she was good with people being around her and the kittens until the other night. She spotted my sisters dog through the door and went crazy on my face and head. I was bleeding heavily, but no permanent damage. I'm pretty sure it was misplaced aggression, but I'm afraid she will never be relaxed, always aggressive and have to live in the shelter forever. Has anyone ever had such an aggressive mommy? Did she calm down after the kittens were older? (She will be fixed as soon as the vet says she is ready.) Also, she sat on my lap today for about 20 minutes, so here aggression is unpredictable.