Yang loves curling up on top of the #1 computer's monitor. Actually, so does BC, but he tends to stay on the back of it (where it's warm). Yang likes being more decorative, which occasionally requires me to lift a tail, a paw, or a hindquarter out of the way of the screen.
Susan the Demon Child came up with a short poem about this:
My computer has a hat.
Most of it is fur and fat.
The rest of it is cat.