A saleswoman is driving through an Indian reservation in Oklahoma.  After several miles through lonely countryside she notices an Indian woman on the side of the road trying to thumb a ride.  The trip had been long & quiet, so the saleslady stops the car & the Indian woman gets in.

After a bit of small talke the Indian woman notices a brown bag on the front seat.  "What's in the bag?" she asks.

"Oh, that's a bottle of wine.  I got it for my husband."

The Indian woman is silent for a moment, then nods her head in approval & says...."Good trade."