A saleswoman is driving home in Northern Arizona when she sees a Navajo woman hitchhiking. Because the trip has been long and quiet, she stops the car and the Navajo woman climbs in.

During their small talk, the Navajo woman glances surreptitiously at a brown bag on the front seat between them.

"If you're wondering what's in the bag," offers the saleswoman, "it's a bottle of wine I got for my husband."

The Navajo woman is silent for awhile, nods several times and says,

"Good trade."