I think there is/should be a grace period though. If a retailer is provided goods by a vendor where the vendor knows their products are illegitimate, it is possible for the retailer to be unaware. However, once it becomes known that the vendor is selling illegitimate products, it is up to the retailer to then remove those items. Most major retailers have agreements/contracts with these vendors that say they must buy back any merchandise unable to be sold. This would be a normal way of handling things. Once this avenue is not pursued and the retailer continues to sell the product, then the retailer is no longer innocent.