What does surprise us is when somebody like Nelson Sakaguchi falls for it. You see, Sakaguchi was director of the Bank Noreste, in charge of--you cannot make this s**t up--its overseas accounts. While Sakaguchi presumably came armed with a vast array of knowledge from a lifelong career in bank management, he was no match for the Nigerians who probably came armed with a fax machine from a foreclosed-on Staples, some second-hand Hypercolor sweaters and a command of the English language only rivaled by Japanese t-shirts run through Babelfish a few times.
The spammers sent Sakaguchi an invitation from the Nigerian government to get in on a plan to build an airport, because the usual bag-with-money-sign was considered played out that season. Sakaguchi agreed to a meeting and met with a man who introduced himself as the director of the Bank of Nigeria. How did he fool a sharp-eyed real life bank director? He had a business card! That's seriously it. He promptly wired them $4 million dollars. We don't know off hand what the exchange rate is in Nigeria, but we're pretty sure that's enough money to buy the entire country and staff it with Diamond-encrusted whore robots.