Thomson, a vacation packager that serves some seven million customers a year in Britain, has admitted that it keeps a blacklist of customers who complain too much. If those grumblers try to book another vacation, they'll be unceremoniously denied. "They'll be told that we are unable to meet their expectations," a company rep told the U.K. Times.

"There's always been a philosophy that the customer is right," said the Thomson rep. "But these people will never be happy."

Some people don't stop at sending back soup when it's too cold or asking building maintenance to change light bulbs. There's the crew that trashes rooms and endangers others, and there's also a whole underworld of pikers who make a game out of picking fights in an apparent effort to pressure businesses into free upgrades or refunds. They dabble in outright fraud, ripping out wiring before marching to the lobby to complain about dangerous exposed wires. And as times get tougher and budgets stretch tighter, the something-for-nothing trickery is bound to get worse.

According to one service industry professional, the web has made it easier to target businesses with demands. Once a few complainers successfully extract refunds from a hotel, word gets out, and soon the career grifters swoop in for easy pickings. When a new hotel opens, for example, the white-gloved harpies get wind of it and arrive to find fault with minor issues such as faulty lighting and pool heaters that don't work properly yet.

When litigator Mitchell Berns was told by Delta that his flight was canceled because of weather, he didn't get mad. He did research.

He checked with the National Weather Service and found out the airline's excuse was a sham: Snow wasn't due for many hours.

See, airlines are allowed by law to cancel flights because of bad weather, but Berns knew at a glance that Delta was just using it as an excuse. He booked with another airline, took off, and then filed suit against Delta in small-claims court to force it to pay back the cost of his replacement flight.

Delta tried to settle the matter by offering him frequent flier miles. But as most travelers are already too aware, frequent flier miles are woefully devalued, over-issued, and flooding the travel market.

As Berns told Fortune -- and this is my favorite part of the story -- frequent flier miles are "Confederate currency." Just as Dixie once did, instead of dealing with systemic problems, the airlines are just printing more useless cash to pawn off challengers.

Did you ever think we'd see the day when people would beg for airline food? Yet here we are.

In mid-August, United announced it would start forcing coach passengers on international flights to pay for their meals. Customers went ballistic. First U.S. Airways makes people pay $2 for so much as water, and then United deigned to lock people up in a steel tube for eight hours without providing free grub. United rebuffed the complaints saying the changes were "necessary."

The new "test" charge was supposed to begin on many transatlantic flights as of Oct. 1. But after fierce feedback from would-be customers that the airline politely described as "candid" but were actually downright scalding, United announced Tuesday that it would not, after all, charge customers to eat on long-haul flights. Some passengers who protested the new fee, many of whom travel for work, were e-mailed a capitulation today ("We heard you," it reads, "and have decided not to move forward," before prattling on about its business class amenities).

It's commonplace for customers to ask for some kind of freebie if a meal is screwed up or if the service is poor at a restaurant and most places will happily oblige. It's another story entirely when consumers threaten to leave a bad review of the restaurant on an online review site. This has been happening in San Fransisco at several restaurants where customers have threatened to "Yelp" the restaurant if their meal is not on the house.

Yelp is a site whose trademark is "Real People, Real Reviews" but unfortunately since the reviewers are real people it doesn't always mean the stories are real. While the site tells its users that they shouldn't accept free food in exchange for a good review, and that they should disclose any special services or comps they get, the reality is that the users can do and say whatever they want. While these amateur reviewers definitely fill a gap in bringing real life opinions about restaurants to the masses, many seem to lack the ethics of professional food critics.

I think this abuse of the restaurants is despicable, it's cases like these that ruin the current system of comping items when something really is wrong. Have you ever wondered why every store is moving to a return policy with as many rules as the FAA issues for air travel? It's because people abused the system and took advantage of lax return policies ruining the experience for the rest of us. Not to mention degrading the value of user driven review sites as well. I wonder how long it will be until we hear about the first case of extortion on Angie's List from a customer who wanted her walls painted for free!