Cats, humans and rules
Papa Hemingway did not like long sentences. He disliked long paragraphs too. So I'll be brief.
Cats should set an example for humans and police the way the latter behave.
Cats turn up on your doorstep when they feel like it, are hungry or just lonely.
Would you begrudge a cat for infrequent appearances?
If you do, the cat will walk away and look for a friendlier face. They are always hedging their bets.
Jordan Peterson makes it Rule number 12 for life: pet a cat when you encounter one.