After his car breaks down, a salesman seeks refuge at a remote Scottish farm house. He's offered the barn to sleep in.
The farmer has an attractive daughter, he tells her "Morag, where's your highland hospitality? take our guest a hot drink".
Then he tells her "Morag, show some highland hospitality and take our guest some food".
Next he demands she takes him a nightcap - to show some highland hospitality.
She's a long time in the barn so the farmer goes to investigate; he seems them rolling around on the barn floor.
Red faced with shame and rage he shouts at his daughter. "Morag, where's your highland hospitality, arch your back and get the man's balls of the cold floor".