I'm a citizen of Nigeria residing in Moscow, Russia. There is no paypal here yet, so, all my transactions are done through bank transfer or Western union.
While I'm not saying Nigerians are not scammers (at least, the Nigerians in question), I'd like to add Nigerians, sometimes, are at the receiving end: I sent money through WU for an item in may - NEW UNLOCKED SPV M2000. The buyer (from London) claimed to have sent the item 20th May, but almost 3months passed and I'm yet to receive the item. All efforts to get the seller track this item from Britain remained futile. And now, she doesn't even reply my e-mails! I spent 400 hard-earned US Dollars and nerves on this.
The lesson: Be watchful and trust nobody! I'm sure some Britons are better than Nigerians when it comes to scam!!