A man and a woman who have never met before find themselves in the same sleeping carriage of a train.
After the initial embarrassment, they both go to sleep. Woman on the top bunk and man on the lower.
In the middle of the night the woman leans over, wakes the man and says
"I'm awfully sorry to bother you and i was wondering if you could possibly get me another blanket."
The man leans out of bed and with a glint in his eye says
"I've got a better idea..... Just for tonight, Let's pretend were married."
The woman thinks for a minute. "Why not" she giggles.
"Great" says the man. "Get your own f*****g blanket."