They put in a new sidewalk,” my neighbor said, “and the first thing that happened was, a cat walked across the cement and left little footprints!”My neighbor was amused. “I hope they leave them. They’re so cute!”I thought those prints would probably survive. No one was going to take the trouble to cover up a few cat prints on the sidewalk with concrete.A few years back, they started putting poetry on the sidewalk, laid right into the cement. I stop and read the poetry on my walk. I’ll ponder for a moment or two, then move on. I’m not great ...