If you get an e-mail like this, it's probably genuine.
Dear Western benefactor,
my name is Muammar Ghadaffi/Hosni Mubarak/the King of Bahrain and I am sitting on a major pile of bullion thanks to some wise investments in British defence exports, Swiss Banks and London property. I have now decided to have a short holiday in Europe/Saudi Arabia and would like to offer the opportunity to share in my good fortune. If you would like to look after my pension fund for a short period, send me your account details and may Allah (peace be upon him) bless you for your kindness. I will deposit several billions of my oil money in your account for safekeeping.