Another bordering-on-the-racist-but-funny joke

[The Clown of Pevensey Bay]

A Japanese couple come to London on holiday, and change some money at Heathrow Airport when they arrive. A few days later, they've run out of cash, so go to a bureau de change at Piccadilly Circus got get some more sterling. The man is angry when the rate he is offered isn't half as good. "Why is this?" he shouts at the girl behind the counter. She replies: "Oh, you know... fluctuations."

The Japanese man goes red in the face, and shouts: "Well! Fluc to Europeans as well, then."