A guy did me up proper on LBC, we made the trade, he was very pushy etc.  Turns out he was using "third party" bank accounts to pay me.  So I blocked him, and left feedback and also reported him to LBC.  He then threatened me. then a few days later I get a call from my bank saying that a fraudulent payment had been notified to them.  I sent the receipt details to the bank individual and they confirmed I can keep the money (legitimate payment) but because it was BTC I was trading in, they threatened to close my account.

I guess thats what the guy threatened me with.

My stupid fault, but I havent really lost any money as a result which I was lucky with to be honest. Still, what a pushy person he was.