A man and a woman who had never met before, but who were both married to other people,found themselves assigned to the same sleeping room on a transcontinental train.
Though initially embarrassed and uneasy over sharing a room, they were both very tired and fell asleep quickly, he in the upper berth and she in the lower.
At 1:00 AM, the man leaned down and gently woke the woman saying, 'Ma'am...?
I'm sorry to bother you, but would you be willing to reach into the closet to get me a second blanket?’
I'm awfully cold.'
'I have a better idea,' she replied 'Just for tonight......let's pretend that we're married'
'Wow! That's a great idea!' he exclaimed..
'Good,' she replied. 'Get your own f...ing blanket.'
After a few moments of silence... he farted.
Thamks for the laugh 
