My wife and I moved into a used rental apartment. We were living peacefully in our second year of marriage, but there was a man living on the floor above us who looked a bit like a troublemaker... He had rules for taking out the trash, and he was smoking in the shared space... My wife, who is serious and competitive and a member of the women's association, really disliked this neighbor. As a pacifist and herbivorous husband, I always advised her not to cause too much trouble, but...