I didn't want to hijack another thread so I thought I would start my own fun topic:
Ah yes, a new phenomenon in this tech age: Cyber Blackmail ala TripAdvisor. It has happened to me. You didn't read about it here because I paid the blackmailer. Read on:
I had someone go on safari. She received EVERYTHING agreed upon plus extra. But she decided that she paid too much (because others who were traveling in a group paid less than her - she was a solo traveler and couldn't understand that a solo traveler necessarily must pay more than someone in a group) and so she demanded money back or she would come here and blast us. (And threatened to use her father who was a lawyer and had even argued a case at the US Supreme Court. Oh no!!! Actually, I was tempted to email her father - yes I could figure out who he was - and let him know of his daughter's behavior so that he could be supremely embarrassed, but I decided against it, much as I wanted to.) So I paid her and lost money. All I got was a good story that I can tell to other business owners as we commiserate (spelling?) with each other.
I will say that I've gotten better at spotting this type before they become customers and I gently nudge them away.