Captain Smooth and Sergeant Rough - Swarte Kattes' two X Os are the mild mannered USAF veteran Paul "Caddy" Vosser and the foul mouthed ex-RAF veteran McLeach who can't make it through a sentence without swearing or an hour without a drink.
If the mild-mannered Clark Kent starts speaking and acting rough and is sexually aggressive, you could bet your lucky stars that he is on red kryptonite.