But be careful: the other day a terrible thing happened to me. Walking down the street I stopped and looked into a store window. My mind was miles away, musing over a dog which, just to make it easy, we'd imported from Montana. Suddenly I noticed my reflection. I was bent slightly at the waist, my right hand close to my right knee, the fingers rigid and held together as though I were going to salute. I straightened up immediately, glancing right and left, the color tingling my face. Panic seized me when I realized I was just about to send an imaginary retriever.