You're forgetting the cost of an extra laundry load for those towels each week. Fresh towel already has bacteria and fungi on it before you dry yourself with it.
He literally told you he didn't give a shit about your kids or theirs. That's indeed sufficient enough for most reasonable people.
I don't know, is it? https://www.yahoo.com/news/articles/tennessee-man-arrested-gets-2-164634732.html
Millions of Americans are doing that right now (hunting season is upon us, which won't be a thing is there is no government)
Just because you set the sub to a set knot speed, doesn't mean it'll actually cover that distance in that time. There are ton of currents going in all different directions.
You bother to waste time making the bed, but not showering before going to bed? Bizarre.