|          An old, tired-looking dog wandered into the yard.  I could tell from  his collar and well-fed belly that he had a home. He followed me into the house, down the hall, and fell asleep in a corner.    An hour later, he went to the door, and I let him out. The next day he was back, resumed his position  in the hall, and slept  for an hour.  This continued for several weeks.  Curious, I pinned a note to his collar: "Every afternoon your dog  comes to my house for a nap." The next day he arrived with a different note pinned to his collar:  "He lives in a home with ten children -- he's trying to catch up on his sleep.   Can I come with him tomorrow?"   |     |