My last negative comment was given to me by a non-paying bidder who retaliated after I gave him negative feedback.
Now, I just got another one from the person who bought my extra dreamcast...after I already had to relist it because the last person who won it never paid. I few days after I shipped it, I get an email from the guy...who only has 1 feedback, which happens to be from me, that the power button on the dreamcast sticks and it's hard for him to turn off. I emailed him back and told him I tested it several times and the power button never stuck when I had it. A few days later, he emails me back and says: "At least the Dreamcast works...I guess I can live with it."
A few days later, I get another email from him. This time, he says the power cord isn't working. He says sometimes it delivers power to the system...but most of the time it doesn't. That power cord was brand new off of ebay! I fully tested it as well.
Today I got on my ebay account, and there was a big juicy negative feedback waiting for me. The guy never even asked for a refund. I emailed him and told him I'd give him a refund if he shipped the dreamcast back to me and agreed to mutually withdraw the negative comment. But still...this makes me pretty upset. That dreamcast worked perfectly when I tested it out.