Last week I started doing something I’ve never done before. I started writing fiction. I realize this does not sound shocking since I’m writing every week. My husband, Peter, says I write fiction all the time—every time I write about him. But the truth is, I have not written a word of fiction since I was in the second grade and wrote, “The 500-Pound Mouse.” I can’t take credit for either the title or the protagonist, as they were assigned by my teacher, but I have to take full responsibility for the deeply disappointing conclusion of the story when our hero, the ...