A stray all-white cat landed half-starved on a neighbor’s doorstep recently. It was a wild little thing but well house-trained. Must have been dumped by some mean person. I don’t have a photo of it, but here’s a photo that closely resembles it:
Notice that the left eye is yellow and the right eye is blue. Spooky! In fact that’s the name my neighbor gave the cat, Spooky.
Incidentally, I found the picture and a good discussion of odd eyed cats here.