A few years ago I was selling some items on a local paper here in my city. This scammer looked up my ad and sent me an email advising he lived abroad but wanted to purchase my items.
I said okay. Send your payment first and I will send you the goods. Well this scammer actually sent me a fake money order which looked completely real. I took it to my local post office and they indeed verified that it was fake.
I took a copy of it just in case and then turned it in to a U.S. postal inspector for further investigation. The scammer also used some local address that I told the inspector about so they can check the address too.
The scammer wanted me to take my money and send him the rest back with the items. By nature I do not trust anyone so I was always skeptical to begin with. Good thing for me that I was skeptical.
When I told him that I had contacted the authorities and they advised me that his money order was a fake, he emailed me back insisting that it was 100% real. He created a new email address with a fake FedEx address so I could ship out the items and also send his money. I told him that I had also contacted the FBI. And that was the last time he emailed me.