A random cat on the loose in a house sounds like a catastrophy waiting to happen.

AT least you didn't see a big black dog in an alley

Sounds more like a MLIA post. Nobody got hurt.

Ask your friend if he has things disappearing like socks or something

It was ghost pussy 😂😋

Cats do adopt houses and people, may take a while until he or she realizes though.
And if kittie is nice and doesn’t pee everywhere or destroy the furniture, why not keep her around?
They do kill spiders and bugs and make great couch companions.

Are you sure it wasn’t a mogwai?

Looks like he has a cat now!

I gotta wonder - Cat, rat, or opossum? How big was that “cat” OP? Were any unscreened windows open?

isn't there some blog/website dedicated to "I don't have a cat" stories?