Pat Byrnes worked at home and made his own hours. His wife's job (Illinois Attorney General) was not so flexible. So when the first baby came, he naively volunteered to go where few men have gone before and stay home with the kids. On one condition. He wouldn't be called Mr. Mom, but . . . Captain Dad. Byrnes has collected his insights in the first book about stay-at-home fatherhood by a professional humorist who has lived the part. He reports...