My fiancé is trying to get her cat used to my apartment and moved in some of the cat's items. Sometimes the cat will be sitting somewhere that I happen to walk by and hiss or growl at me. I understand the need to give the cat space, but I also need to go to the kitchen to eat, go to the bedroom to change or sleep, go to the bathroom, or leave for work. In those cases, giving the cat space is impossible without the ability to teleport. What can I do to avoid escalating things?