I've been teaching now for about fifteen years. I have two kids myself, but the best birth story I know is the one I saw in my own second-grade classroom a few years back. When I was a kid, I loved show-and-tell. So I always have a few sessions with my students. It helps them get over shyness and usually, show-and-tell is pretty tame. Kids bring in pet turtles, model airplanes, pictures of fish they catch, stuff like that. And I never, ever place any boundaries or limitations on them. If they want to lug it in to school and talk about it, they're welcome. Well, one day this little girl, Erica, a very bright, very outgoing kid, takes her turn and waddles up to the front of the class with a pillow stuffed under her sweater. She holds up a snapshot of an infant. "This is Luke, my baby brother, and I'm going to tell you about his birthday." "First, Mom and Dad made him as a symbol of their love, and then Dad put a seed in my Mom's stomach, and Luke grew in...