This is a total hypothetical question, and just wondering how it works. Using a refurb iMac as the Example. If you get a refurb iMac and it has screen issues, can you return it and have Apple pay the shipping back because it's defective? I know if you opt to return a refurb you have to pay the shipping back. I was just wondering if you have the option to return a bad one on their dime for a refund instead of getting a replacement.