My dog Tasha loved to go for walks. Well, we had to call them "W's." If the word WALK got mentioned prematurely, she would start yelping and spinning in circles. But the truth is, I loved going for walks just as much as she did. A walk around the neighborhood was a wonderful opportunity to breathe in the fresh air and scope out the various flower gardens along the way. But, sometimes when Tasha and I would saunter along, I would get so preoccupied looking around me that I'd forget to keep my eyes on the path. As you well know, every now and again you will come upon a spot in a sidewalk that has either sunken down a bit or has risen up slightly. If I wasn't paying attention, I could find myself tripping, twisting an ankle, or worse yet, sprawled out in an embarrassing heap. Someti...