A man and woman, strangers to each other, were assigned to the same sleeper car for an overnight train trip.
Because it was late and both were very tired, they agreed to accept what fate had dealt them.
The man took the upper berth, and the woman crawled into the lower berth.
In the middle of the night, it became awfully chilly, and the man gently awakened the woman to ask whether she would get him another blanket from the storage area.
"I have a better idea," she said. "Just for tonight, let's pretend that we are married."
"Wow!" the man replied. "That's a great idea."
"Good," said the woman. "Get your own blanket."