One customer was absolutely livid when his server did him a 'graceful favor' when his card was declined. The situation evoked quite a discussion on Reddit, where people either completely agreed with the original poster (OP), or totally disagreed and thought that they were in the wrong. So what happened? Well, a very rude customer showed up to eat at OP's workplace, and after serving them, OP came to give them the check. Unfortunately, their card was declined. OP didn't want to embarrass the cus…