Fluctuations I will never hear or see this word again without thinking of this joke... I was at my bank today ( in London ); and there was a short line. There was just one lady in front of me, an Asian lady who was trying to exchange yen for dollars. It was obvious she was a little irritated. She asked the teller, ""Why it change? Yesterday, I get two hunat dolla fo yen. Today I only get hunat eighty? Why it change?"" The teller shrugged his shoulders and said, ""Fluctuations."" The Asian lady says, ""Fluc you white people too""..