Some complete nutsack messed me about on there recently, left me negative feedback because I said I didn't accept Paypal (auction description also stated no Paypal) and to pay by credit card he would need to call me with this card details. In my return negative feedback I called him a Dog's Anus, he complained to eBay about it and three days later his feedback was removed and so was mine - Nice way to avoid any negative feedbacks in the future eBay didn't moan at me or anything either!