A man and a woman who have never met before find themselves in the same sleeping carriage of a train.
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?” giggles the woman.
“Good,” he replies. “Get your own blanket.”