A traveling salesman came up to a farm. It was late and the salesman asked the farmer if he could stay for the night.
"Yes, you can," said the farmer. "But I want to tell you that I don't have a daughter, or a son or a wife. I don't have any animals and I don't have a crop. You'll have to sleep in the spare bedroom in a comfortable queen-sized bed. "
The salesman thought about it for a minute. He then tipped his hat and said, "My good sir, I do believe I am in the wrong joke."