I have a 20 year old female and a 5 year old male. 20 year old is in great shape except deaf. She has never liked other animals. Two or three times a day (usually late afternoon or later) they meet in the hallway that leads to bedrooms (20 year old spends a lot of time on one of the beds) and the 20 year old screams and hisses and bats at George. George stands his grpund but just stares back. Neither has claws so the worst that happens is a little boxing. How do we stop this? We yell at George but it does no good. Should we ignore?