Do unto others as you would have them do unto you… There are times in our lives when someone does us wrong; usually, the best thing you can do in that situation (and the thing you should do) is walk away. There are times, though, when an opportunity to even the scales presents itself that just can't be passed up, and you give in to your most basic instinct. That's what this games cabinet seller experienced when a customer, who had scammed them out of both payment and a cabinet, attempted to sel…