Since my sister and I saw coyotes recently, we began to keep our cats inside - she has two, I have two. She moved back in about 7 months ago or so, and her cats didn't like the move. She started letting them out April and they got used to it, and eventually my cats followed. So since last week we began keeping them in. One of her cats since the move has changed so much, he used to be the most gentle cat. When he moved in, he began attacking my cats and not getting along with her other cat. But since we stopped letting them out, he has been a much bigger bully and turned to attacking people, all but my sister. Today when he got out, I went out and got him, everything was fine, I was talking baby talk to him on the way back in the house, it was all very gentle, and he turned and attacked. he scratched my face right by my eye, thank God he missed my eye. I have always treated this cat gently, feed him, take care of him when my sister goes away. I'm so upset. He has always been bad with my cats, but today it's just gone too far. My sister felt badly and so she let him out, she didn't want his bad mood to mean he'd attack others. But I feel like she is rewarding bad behavior, but she doesn't feel like there's any other way. She has always spoiled them and told me no matter what happens to them out there, even if she wants them home and safe, she rather let them do whatever they want so they are happy and that a short and happy life is better than a long one inside the house with some discipline. We disagree on this, but the biggest problem is this behavior. He attacked my mother when she was walking by him the other day, and she couldn't get his claws out of her foot. He even bullies my dog, a german shepherd who is terrified of him. I used to really care for this cat, but I think his lack of discipline has gone to a point where he knows he can get away with anything and will act out if he doesn't get what he wants. Though he will rarely act out on my sister, he's smarter than that. So I'm at a loss of what to do. She doesn't agree with me on the thoughts that she is going ahead and rewarding for bad behavior, so what solution is there if this behavior continues, what else can we do? Does anyone have any thoughts on this? Maybe if letting him out means he doesn't attack any of us anymore, maybe it is better? Thanks so much for any suggestions