Vicky was driving her car home when she saw an elderly woman walking along the side of the road. She stopped the car and asked the woman if she would like a lift. With a silent nod, the woman climbed into the car. Vicky tried in vain to make conversation with the older woman. The old lady looked closely at everything she saw, studying every little detail, until she noticed a red gift bag on the seat next to Vicky. 'What's in the bag?' asked the old woman. 'Those are a few books that I got for my husband.' The elderly woman was silent for another minute or two. Then speaking with the quiet wisdom of an elder, she said, 'Good trade.'