I can see it now. You're in a dogfight with an enemy and about to collide right into him. You order the aircraft to pull up and all of a sudden you hear from the computer:
"I'm afraid I can't do that, Dave."
All I can say is make sure you're carrying a spare pair of clean underwear.
(avoiding the obvious joke about the next generation of Airbus fly-by-wire---JUST KIDDING GUYS!)