Thanks guys! I actually have two cats myself. I love them, but I'm sure they would take over the world if they thought they could.
Those cats are based on a real place. When I was a kid, my friend had a neighbor who was an old lady with hundreds of stray cats living on her property. She eventually died, but the cats remained for a while. You could drive out to her place at night and see all their eyes shining in the grass. It was eerie, and it stuck with me, as you can tell.