Beware new member "Prints Valiant"

I have been screwed over by PayPal a few times on someone wanting a refund. I was thinking about some ways to protect ourselves. First, we have to be 100% honest with the description in the ad. (I am NOT saying you weren't!) Don't give them any wiggle room for a legitimate complaint. Post plenty of good pictures in the ad and describe all flaws. In the ad, make sure to add, "More pictures and some videos of the parts are available if you provide me an Email or cell number". Then there is no way a person can say they were cheated, and/or did not get what they expected. This extra amount of work might not work for people who sell a LOT of parts, but for the average person who just has a few parts to sell, it might be worth it. I realize that PayPal can suck at times, but if a person did everything listed above, how could they say you cheated the person?