Actually I have heard of this before. I don't know if anyone has heard of "walmart Puppies/Kittens". People claim that they have 3-4 kids and want the animals as pets for thier kids. They end up as snake food or worse.
You might want to try to take the cats and place them yourself, either with other families or with a shelter.
I know this is wrong, but I have joked many times about my cats being snake food. I ain't a cat person. I would never do it, but I make the jokes.