Claimed water damage on an AS-IS Working with boot issues Macbook.
Allegedly sent to shop and got it fixed for $350 (cash) no receipt obviously :)).
Threatened for a $200 refund or he would go to paypal and claim the full amount of sale.
No pics or any documentation backing up his claim were provided...

If there was water damage (which there probably wasn't):
-Never sent pictures of the damage (should be the first thing you do?)
-Didn't bring up if he should get it repaired before figuring out a solution to his claim.
-Couldn't be return for full refund cause of the repair performed.
-It was an item that didn't work and that was specified in the listing. Regardless of if I missed liquid damage on my review of the laptop, the problems of the laptop were not changed, just the cause (from unknown to water damage...).
-There were HD pics in the listing showing the bottom of the laptop without casing that you could not see any water damage so at best it was very small and hard to see. Not negligence on my part.
-Stated in listing "tested for Power only" meaning i do not perform any other tests or checks.

He went to paypal claiming the full amount which he will win since paypal only sides with buyers despite no evidence or logic.

Bad buyer, has one other history of bad buying. I cannot leave negative or neutral feedback for him since he beat me to it and now I can only leave positive, probably why his feedback has no negative. Beware and save your time as a seller.