Would you accept cash in a car park from a Serbian car dealer?

Well, I've just sold my 4x4 to a lady with a Serbian accent, who is buying it for a friend called Vlad. Deposit paid by credit card and the balance will be handed over in used tenners tomorrow.

My wife's response to the announcement that tomorrow we're driving two cars to a railway station to handover surprised me. 'It's probably drug money,' she said, 'or the proceeds from human trafficking.

My 'due dilligence' suggest otherwise. The buyer's Facebook profile shows a smiling middle aged lady holding a much loved dog. Surely a drug dealer would have a more sinister profile picture - perhaps something moody, with urban graffiti in the background and certainly dark glasses.

The deposit was paid via my website, which means I have the guys name, address, phone number and email address. Google reveals him to be a trustee of a Greek Orthodox  religious charity so perhaps not a man likely to be shipping teenagers over the North Sea to satisfy the sexual desires of London's coke fuelled city traders.

Am I naive, or do dodgy people carefully craft respectable online personas to trick people like me? If we all thought that, then nobody would trust anyone. Surely the default for us all is to be honest, trustworthy and decent. Tell me I'm right - please!