His truck had broken down in the country and there was no alternative for the trucker but to walk the ten miles to the nearest farmhouse.
He explained his predicament to the farmer and asked if he could spend the night.
“Sure,” said the farmer, “but I must warn you that i don’t have any daughters. I don’t even have a spare room, so you’ll have to share my bed.”
“Damn,” said the trucker. “I’m in the wrong joke.”