Reminds me of that priceless paragraph from Michael Collins' autobiography about how the Air Force sent their astronaut candidates to a "charm school" in order to increase their chances of being selected by NASA, where among other things they learned how to correctly hold their hands on their hips:
"… in my opinion, the apogee of the course was surely reached the day we learned how to hold our hands on our hips (doesn’t anyone learn anything at home any more?). Thumbs forward, ladies! Thumbs to the rear, gentlemen! To reverse would not only be gauche (perhaps even worse) but, of course, would result in instant detection and rejection by NASA, the old meanies. I have studied this matter exhaustively in later years, and have found burly construction workers with thumbs forward and mincing fairies with thumbs aft, but then they obviously are not charm-school grads."