
Hygiene
Cats have always had the same well-meaning but shaky grasp of hygiene as humans, viz, if you've covered it over, it isn't there. The important thing is not actually to have achieved Hygiene, but to have been seen to have made the effort—as in, for example, trying to claw the lino into the dirt box.
What's so hygienic about having a wash in your own spit?
However, the Real cat scores over other domestic pets in one unusual respect: Real cats know what the bathroom is for.
We returned one day to find that the incumbent Real cat, by means of the usual hyperspace travel, had been in when we thought she was Out. Thus no dirt box had been provided. Real cat, we thought, had a rather shifty expression, although this particular cat has a shifty expression all the time and even breathes as though it is stealing the air. A perfunctory search of the usual resorts of desperation—dark corners, the fireplace revealed nothing unpleasant that wasn't nor until, much later, we went to the bathroom.
