I have a 12 year old tortoiseshell cat.She loves people but is a real bully to my other cats.Five of my other cats are big enough to fend for themselves so her behaviour does not worry me too much.I have just got 2 eight week old kittens and Phyllis(the bully) hates them.Last night she managed to swipe at one of them and cut the kittens head.Phyllis lives upstairs,it is her territory.She sleeps,eats,drinks and has her litter tray upstairs.She gets very annoyed if the other cats come up the stairs so they usually sneak up when she is asleep.The kitten that got cut went upstairs and was set upon.What can I do to encourage friendliness?At night the kittens(Meep and Fweep) sleep in a big cage in my room so that they are safe,but where Phyllis can see and smell them.During the day Phyllis stays upstairs and the kittens come downstairs.