Feeding the cat's mate's from the neighbours is part of the joys of owning a cat
Not always: not only have the two strays that have been sponging off me for years failed to learn proper gratitude, they've added insult to injury by teaching one of my own to be leery of me, too.
If I weren't such an incurable softy, I'd move the kibble and water bowls indoors and let the ingrates starve.