Since the cat decided to live with us a couple of years ago, Hubby has referred to him as "your cat". As in "your cat needs to be fed," "your cat made a mess in the garage," "your cat is so goofy." Of course he feeds the cat, pets the cat, and even has a chair next to his chair in the office for the cat. He has caught himself several times before calling the cat his cat, but the other day he finally slipped and said "my cat nearly fell off the chair when I was petting him." Ha! Gotcha!