http://books.google.ro/books/about/The_Big_Short.html?id=QO3kYlcjhjkC&redir_esc=ysome funny part from the book
There was a reason Greg Lippmann had picked Wing Chau to sit beside Steve Eisman. If Wing Chau detected Eisman's disapproval, he didn't show it; instead, he spoke to Eisman in a tone of condescension. I know better. "Then he says something that blew my mind," said Eisman. "He says, 'I love guys like you who short my market. Without you I don't have anything to buy.'"
Say that again.
"He says to me, 'The more excited that you get that you're right, the more trades you'll do, and the more trades you do, the more product for me.'"
That's when Steve Eisman finally understood the madness of the machine. He and Vinny and Danny had been making these side bets with Goldman Sachs and Deutsche Bank on the fate of the triple-B tranche of subprime mortgage-backed bonds without fully understanding why those firms were so eager to accept them. Now he was face-to-face with the actual human being on the other side of his credit default swaps. Now he got it: The credit default swaps, filtered through the CDOs, were being used to replicate bonds backed by actual home loans. There weren't enough Americans with shitty credit taking out loans to satisfy investors' appetite for the end product. Wall Street needed his bets in order to synthesize more of them. "They weren't satisfied getting lots of unqualified borrowers to borrow money to buy a house they couldn't afford," said Eisman. "They were creating them out of whole cloth. One hundred times over! That's why the losses in the financial system are so much greater than just the subprime loans. That's when I realized they needed us to keep the machine running. I was like, This is allowed?"
Wing Chau didn't know he'd been handpicked by Greg Lippmann to persuade Steve Eisman that the people on the other end of his credit default swaps were either crooks or morons, but he played the role anyway. Between shots of sake he told Eisman that he would rather have $50 billion in crappy CDOs than none at all, as he was paid mainly on volume. He told Eisman that his main fear was that the U.S. economy would strengthen, and dissuade hedge funds from placing bigger bets against the subprime mortgage market. Eisman listened and tried to understand how an investor on opposite ends of his bets could be hoping for more or less the same thing he was--and how any insurance company or pension fund could hand its capital to Wing Chau. There was only one answer: The triple-A ratings gave everyone an excuse to ignore the risks they were running.
Danny and Vinny watched them closely through the hibachi steam. As far as they could tell, Eisman and Wing Chau were getting along famously. But when the meal was over, they watched Eisman grab Greg Lippmann, point to Wing Chau, and say, "Whatever that guy is buying, I want to short it." Lippmann took it as a joke, but Eisman was completely serious: He wanted to place a bet specifically against Wing Chau. "Greg," Eisman said, "I want to short his paper. Sight unseen." Thus far Eisman had bought only credit default swaps on subprime mortgage bonds; from now on he'd buy specifically credit default swaps on Wing Chau's CDOs. "He finally met the enemy, face-to-face," said Vinny.