You should give him a refund. It sounds like a negligent misrepresentation, breach of contract case from the other person's perspective. Take it back if it is in the same condition and sell it with proper disclosure and take comfort in doing the right thing.
If this information has been helpful, please check the thumbs up tab below. Disclaimer: The above is intended to give you some insight into various legal topics. This information is not intended as legal advice, but rather an attempt to provide helpful topical information. Please consult a lawyer as to the specific circumstances of your case. Again, this is not to be considered legal advice nor does an attorney-client relationship exist. If there are more facts that you overlooked and did not include in your initial question and you would like to email me, you may send an email to email@example.com. Steven M. Fahlgren Attorney, Arbitrator and Certified Circuit Civil Mediator Law Offices of Steven M. Fahlgren, P.A. Phone: (904) 845-2255 Phone: (407) 852-1711 www.ForTheConsumer.com www.FahlgrenLaw.com www.SteveFahlgren.com