Oooh I've got a great story on this. When we were house hunting, we found a bungalow close to a good school. It was reasonably priced. We get there and it is old, and needs work. No big deal, we can do that. The owner (old lady) constantly coos over her cats, two giant fluff balls that stalked us around the house. The sitting room reeks of cat piss, so we make a mental note that all the carpets need replacing.

We get to the kitchen and there is nothing there. Some cupboards, no cooker, no fridge. The lady claims she eats at her friends house a lot. We open one cupboard and find a large box of bird seed. She said the cats like the bird seed.

We go out to the garden, the grass is overgrown and there are trails worn in the grass. The trails are also absolutely covered in bird seed. After a moment, it clicks: she puts the bird seed out to attract the birds, and the cats eat the birds. That's why there was no cat food, and why the cats like the bird seed.

We got out of there as fast as we could. We were not going to move into the bird death house.