The mathematical probability of a common cat doing exactly as it pleases is the one scientific absolute in the world. —Lynn M. Osband
Cats don’t have to worry about much of anything especially when they have a human to provide them lots of food. So, they know they are safe and cared for. Ergo, they can afford to do as they please.
Cats do not have to be shown how to have a good time, for they are unfailing ingenious in that respect. —James Mason
Yes, they know to sleep when they are tired. To eat when they are hungry. And to play as much as possible, even if it means driving us crazy as they do so.