My daughter's cat Chester was found abandoned in a pickup truck when he was approx. 3 wks. old. He is now almost 2. He has always bitten her, and not other family members. The vet said when he was a baby that due to other problems he felt that he had mental issues. He told my dght. that Chester had no conscience and that there were too many other cats that needed homes. He also told her that in his opinion Chester would not change. Was he right. My dght. now has 3 kittens about 8 wks. old that she rescued from outdoors. Chester will clean them, and then goes for their throats. He gets ahold of my dght., holds with his claws and bites deep. This is almost an every day occurance. Her arms are all bit and scratched. It takes other family members to pull him off. Water doesn't mean a thing. She carries a throw pillow in the house with her to ward him off. He even attackes when she is sleeping. I'm afraid that she needs to euthanize him as the vet suggested. She can't give him to someone else. Especially if the family has kids. We have a few do not kill shelters in the area but they are only for cats that are adoptable. Please any suggestions will be appreciated. The vet said that he is healthy, except mentally. He's a beautiful black & wht. cat. I'll be waiting for your answers.