@GladiusNocturno I've actually got a possible lead on the evil cat. A couple of years ago, my roommate was looking to adopt a new cat and while she was at one of the shelters here in Austin she spent some time with a particularly mean tempered cat nicknamed Murder Cat. Physical description matched Gus' cat, and whenever somebody actually tried to adopt Murder Cat, they brought the cat back within a week. Murder Cat wasn't happy unless he was in the shelter, like those lifetime convicts who live a better life on the inside.