A pretty girl is driving through the west. Her car runs out or gas, and an Indian comes along on a horse, and gives her a ride to a gas station.
Every few minutes he lets out a wild whoop that would curdle milk.
Finally, he drops her off with a final "Yiiieee-yiiieee-yiiiee!" and gallops off.
"My god!" says the gas station guy. "What were you doing to that Indian to make him holler like that?"
"Why, nothing," says the girl. "I just sat behind him with my arms around him, holding onto his saddle horn."
"Lady..." says the guy, "Indians don't use saddles."