Is the customer always right? Well, a couple of incidents in the U.S. have sparked discussion about that old business adage.

A JetBlue flight attendant was arrested after getting into an altercation with a passenger after landing at John F. Kennedy Airport on Monday. According to the New York Times, the passenger was retrieving baggage and ignoring requests to remain seated until the plane reached a complete stop.

The passenger struck flight attendant Steven Slater in the head after pulling the baggage down but refused to apologize, the paper reported. Slater unleashed a string of expletives via the public-address system, deployed the inflatable evacuation chute, grabbed a beer from the beverage cart, yelled "It's been great!" and slid down and went to his car.

He was arrested later at his home in Queens.

Meanwhile, police in Toledo, Ohio, have just released security video of a 25-year-old woman smashing the drive-thru window of a McDonald's after being told she couldn't get Chicken McNuggets at 6:30 in the morning.

The woman was charged with vandalism.

Have you ever quit a job while dealing with the public? Is the customer always right? Let us know.
(This poll is not scientific. It is based on readers' responses.)