I had a swap set up for some reloading items for archery equipment. It was a done deal swap for a Redding case trimmer I have. Addresses were exchanged and we both agreed on the swap and then he asked if I had any die sets. I replied I did and he then backed out and offered to sell the items to me for 40 bucks!!!
I would watch doing any swaps with him and be sure to get items first so he dont decide at last minute to back out after its all packed up and labeled.