It's this obsession with cleanliness that's simply extreme to the point of making people's hair stand on end.
He didn't even know how many times he had washed his hands these past few days.
He would casually touch something, and no matter what it was, he had to wash his hands before he could touch it again, and it wasn't enough just to wash—there couldn't be any water left on his hands afterward.
What's more exaggerated is that you didn't even need to touch anything; if ten or so minutes had passed and you wanted to touch it again, that still wouldn't do—he would complain about dust and sweat stains on your hands...
Even worse, if you came out of the bathroom, it didn't matter if you went in to wash your hands or to grab something, you would be scorned even more than if you had fallen into the toilet, and you had to stand far away to shake off the scent you brought from the bathroom before you could come close.