Underthecounter has an interesting set of photographs from Triple Witching Friday about the chaos at Mizuho securities after the trading error that cost the firm $335 million. If the photographs are genuine (one comment says that they are doctored photographs of the Taiwan parliament), some of our preconceptioms of Japanese cultural nuances need to be revised. Perhaps trading rooms around the world are the same regardless of the host culture. Financial markets are indeed a great leveller.
The trading error also led to the resignation of the head of Tokyo Stock Exchange. Photographs of the scene there would be interesting!