[Peter_Spaeth]

Let's say you're a dealer or regular seller. You sell someone a graded card. A year or more later, the card is outed by clear evidence as having been altered, and the seller requests a refund. Let's assume you didn't know it was altered when you sold it. Should you refund or is it now the buyer's problem? Looking for people's thoughts on the ethical issue, not a legal analysis over whether the buyer would have a claim for rescission under mutual mistake or a related doctrine.