I remember an argument on site when I worked as workshop manager over some long forgotten minor issue. Our rather pompous and somewhat unpopular site supervisor, Bob, overruled me by bellowing "I'M THE ONE WITH THE WHITE HAT" of course my whole crew dissolved into sniggers and henceforth whenever asked a question of any nature, however insignificant, if Bob was in sight would point at him and say "dunno - he's the one with the white hat...."