TARGET CONTROL CATS
Years ago I ran across a humorous scifi short story about a ship's cat on a starship. Through an unlikely series of events, the cat manages to operate the ship's weapon and destroy an attacking pirate ship. It seems that the crew was incapacitated by the pirates dreaded paralysis ray. Which has no effect on cats.
Story was "Well Worth the Money" by Jody Lynn Nye. Collected in Cats in Space and Other Places.