Donnie Green himself had been a trader at Salomon Brothers in the Dark Ages, when traders had more hair on their chests than on their heads. He is remembered as the man who stopped a callow young salesman on his way out of the door to catch a flight from New York to Chicago. Green tossed the salesman a ten-dollar bill. “Hey, take out some crash insurance for yourself in my name,” he said. “Why?” asked the salesman. “I feel lucky,” said Green.