Nigerian Spammers remind me of Roger Mellie from Viz, each failure just adds more feather to their colorfull body of conviction. I read a story about a guy who knew (like the rest of us) about Nigerian Scammers, and still fell for it. And that is Pro. That is an Insurance Salesman to the power of 1024.
P.S.
BTW: My collection of Nigerian Per-Suasion is stored here ==> http://www.madpole.org/wbb2/thread.php?threadid=425