I was alone in Mrs. McGuire's office, waiting to meet the couple who had asked to see me. Sitting "properly" on the straight-back chair next to Mrs. McGuire's desk was making my back ache but I knew from past experience that I had better be on my best behavior. Mrs. McGuire was the chief administrator of our orphanage and pounced on us if we slouched or did anything else "improper" in front of visitors. "Posture, posture," she would cry out when she passed us in the cafeteria, and we all would snap to attention. Those who didn't obey her had to walk around with a book on their heads for hours, and if the book fell off, they would have to do it over again the next day. "You children are orphans," she lectured to us, "looking for some nice people to come snatch you up and make you members of their families. You must be better than...