Had a bunch of Canadian dollars I needed to exchange so I went to the currency exchange window at the local bank. Short line... just one guy in front of me... an Asian guy who was trying to exchange yen for dollars and he was a little agitated... He asked the teller, "why it change, yestoday I get two hunat dolla fo yen - today I get hunat eighty? Why it change?" The teller says, "fluctuations." The Asian guy says, "fluc you white guys too!"