Okay, here's a joke:

A farmer in Montana was driving along a country road when he came across a hitchhiker. Stopping and picking up the young man he asked where he was from.

“San Francisco,” replied the young guy in a somewhat feminine sounding voice.

A little way down the road the farmer saw a ewe with it’s head caught in the forked posts of a fence. “Ever had one of those before,” asked the farmer?

“No,” replied the young man.

Stopping the truck the farmer went over behind the ewe and had his way with the poor beast. When he got back to the truck he asked if the young man wanted to try that.

“Okay,” said the young man walking over and putting his head in the forked posts of the fence.