I found a great post from a Digg comment about customer service and the lack of basic manners and respect granted to people in service-based industries.
The phrase ‘The Customer is Always Right’ is the single worst philosophy that has ever been adopted by American culture. It gave an entire generation of people the green light to be as impolite, unreasonable, and demanding as their little hearts desired because they were always going to be considered right. It destroyed the entire concept of courtesy and rendered manners obsolete.
Spot on. The customer isn’t always right. Sometimes customers are plain stupid, rude and not worth the time and effort to serve them. Just because you ordered from the dollar menu doesn’t give you the right to be a dick.