This time round, I am a human girl and Harry is a dog. This is inconvenient, because my parents didn't really want a dog with a jutting eyebrow fringe and a shaggy, untrimmed beard. Nor did they want a dog that cost five hundred dollars. "A pedigreed Schnauzer!" I said in despair when I recognised him that morning at the agricultural show. "Why did you have to be a pedigreed Schnauzer, Harry? I mean - why did you have to be a dog?" Harry looked sheepish...