Bed Football

A little old couple prepares to go to bed. They no sooner hit the pillows when the old man farts and says, "Seven Points."
His wife rolls over and says, "What in the world was that?"
The old man replied, "It's fart football."
A few minutes later his wife lets one go and says, "Touchdown, tie score. "
After about five minutes the old man lets another one go and says, "Aha. I'm ahead 14 to 7." Not to be outdone, the wife rips out another one and says,"Touchdown, tie score." Five seconds go by and she lets out a little squeaker and says, "Field goal, I lead 17 to 14."
Now the pressure is on the old man. He refuses to get beat by a woman, so he strains real hard, but to no avail. Realizing a defeat is unacceptable, he gives it everything he's got, and he accidentally shits in the bed.
The wife says, "What the hell was that?"
The old man says, "Half time, switch sides."