Citi made a $500 million mistake. Here's how that would play out for regular people

Citigroup lost a court battle Tuesday to claw back $504 million it mistakenly wired to Revlon's lenders in August. But don't get your hopes up that you could keep a chunk of change accidentally placed in your bank account.

A federal judge ruled that the wire transfers made by Citi (C), who was acting as Revlon's loan agent, were "final and complete transactions, not subject to revocation." However, in most instances of mistakenly receiving wired transfers, that's not the case. In fact, you would have to pay the money back — or face criminal charges. READ MORE