I'll try and make this a short story. Sold a used brake caliper on ebay. I start my bids at $1 plus whatever shipping cost. I have a no return policy. So I sold this caliper to a guy for what I thought was too much, but hey, thats the free market right? So this guy gets ahold of me saying he sent the caliper to 2 different shops and they couldn't get the piston out and wants a refund. I write back and tell him thats not my problem and sorry the shops you sent it to sucked and directed him here for advise and possibly a member could do the work for him. He writes back threatening negative feedback and ebay resolution etc.. I contacted ebay about the feedback extortion.
So questions I have are
1. Can a piston be that stuck or is this guy full of crap and regretful purchasing remorse?
2. What should I do, tell him no means no, or what? Heard ebay always sides with the buyer, even if they cant read.
Thanks for any real world advise!