Sally was driving home from one of her business trips in Northern Arizona when she saw an elderly woman walking on the side of the road.
As the trip was a long and quiet one, she stopped the car and asked the woman if she would like a ride. With a silent nod of thanks, the woman got into the car.
Resuming the journey, Sally tried in vain to make a bit of small talk with the woman.
The old woman just sat silently, looking intently at everything she saw, studying every little detail, until she noticed a brown bag on the seat next to Sally.
'What in bag?' asked the old woman.
Sally looked down at the brown bag and said, 'It's a bottle of wine. I got it for my husband.'
The woman was silent for another moment or two.
Then, speaking with quiet wisdom, she said, 'Good trade.'