A man and a woman who’ve never met before find themselves in the same sleeping carriage of a long-distance train.
After the initial embarrassment they both manage to settle in and go to sleep – the woman on the top bunk and the man on the lower.
In the middle of the night the woman leans over and says, “I’m sorry to bother you, but I’m awfully cold and I was wondering if you could possibly pass me another blanket.” The man leans out and with a glint in his eye says, “I’ve got a better idea, let’s pretend we’re married.” “Why not,” the woman giggles. “Good,” the man says. “Get your own blanket!”