What’s a blanket on a cold airplane worth?

Not $12, at least not for one passenger on a recent Hawaiian Airlines flight from Las Vegas to Hawaii. A 66-year-old man was charged $12 for the blanket, but not with anything else, despite causing the flight to be diverted to Los Angeles. According to news reports, the passenger was deemed “unruly” by airport police after saying he “would like to take someone behind the woodshed for this,” and was removed from the flight.

“Diverting a fight is clearly not our first choice, but our crew felt it was necessary to divert to Los Angeles and deplane the passenger before beginning to fly over the Pacific Ocean,” the airline said in a statement.

George Hobica, the founder of Airfarewatchdog.com, said: “I think Hawaiian should have just given him the blanket for free. Doing that emergency landing cost Hawaiian thousands of dollars. This fee seems more silly than exorbitant.”

As most passengers can’t help but notice, add-on fees are becoming more and more prevalent. Mr. Hobica said the fee that makes most passengers angry is the one for changing flights, which costs an average of $200 on domestic flights. But that does not mean the smaller fees aren’t aggravating.