Bought used audio equipment, used it for 6 months and then filed a Paypal claim just days before the 180 days deadline, ticking "doesn't match the description" (without any substance). Tried to blackmail a 70% discount – or return. Amazingly, Paypal "resolved" the case by allowing return while granting a full refund, helping this obvious fraud to succeed. 6 months free rental, sticking the seller with Ebay & Paypal fees + original shipping costs.