I bought a 2001 Fender American Deluxe Stratocaster (yes, a guitar, sorry) for what I thought was a great price. I was the only bidder. I paid via paypal. The seller e-mails me two days later and says he was putting new strings on it for me, and in the process knocked it off the table and cracked the neck very badly. He refunded my money, including all fees. Now, I realize that I'm not out any money, so I can't complain very much. Also the guy has 100% feedback. Still, it seems odd: You put new strings on a guitar that you have sold? You don't realize that string choice is very personal, and the first thing the buyer is likely to do is put on the strings that he likes? You can keep a guitar in mint condition for ten years, and then FUBAR it while changing strings? I suspect he just didn't like the selling price and wants to re-list it with a reserve. I'm tempted to claim that I'm a repair expert, and ask to see a picture of the damage.