One of the subjects C.S. Lewis addressed in his book "The Screwtape Letters" was the topic of ownership. In this book, Lewis is writing from the devil’s perspective — showing us his temptation playbook. In one letter, senior devil Screwtape writes to his nephew Wormwood:
"The more claims on life… that your patient can be induced to make, the more often he will feel injured and, as a result, ill-tempered. Now you will have noticed that nothing throws him into a passion so easily as to find a tract of time which he reckoned on having at his own disposal unexpectedly taken from him…
You must… zealously guard in his mind the curious assumption “My time is my own”… You have here a delicate task. The assumption which you want him to go on making is so absurd that, if once it is questioned, even we cannot find a shred of argument in its defence. The man can neither make, nor retain, one moment of time; it all comes to him by pure gift; he might as well regard the sun and moon his chattels. He is also, in theory, committed to a total service of the Enemy…