So okay here is what you do.
You get up, go to work, spend all day there, go home, stay awake too long, sleep too little, do it 5 days then try to catch up on lost sleep in the weekend.
This way you will get as little out of all your free time as possible, and eventually get depressed and/or have a mental break.
Good luck!
Or the fox being sneaky was a pretty universal symbolism, and both the Danish and Japanese saw the Christians as sneaky, manipulative people.