Dog expands walker's experience

Of course, the best way to get to know a city is by walking, and this is true of dogs as much as humans. I get a lot more exercise since Grisby's arrival in my life; thee days, I prefer to travel by foot just for the pleasure of watching him trot along by my side. I like the way he draws my attention to things I'd never noticed before: stains on the sidewalk, discarded food, chewing gum, feathers, cigarette butts.

Mikita Brottman, The Great Grisby: Two Thousand Years of Exceptional Dogs (New York: HarperCollins), ch. 3.