I've only been scammed once and it wasn't on this forum. I've sold quite a bit on eBay and on one occasion, I shipped ahead of payment which I never received even after multiple attempts. At first, the guy was really nice over the phone and said he needed to get the items before his daughter's B-Day. The items probably totaled around $80 SV. To this day, I still have his mailing address and the phone number he contacted me from, and I imagine what confronting him in person would be like. What he took was my trust, but what he gave me was an experience which has helped me avoid future scams.
Go Bison! Go Vikings!