Everyone has been on a flight where the person in front of them jacks the seat back so far that you're basically staring at the top of their head in your lap.

It sucks, but it's just kind of how it is. After all, you can always do the same to the person in back of you!

On Sunday on a United Airlines flight from Newark, N.J., to Denver, one passenger used a device called the Knee Defender, which when installed, prevents the seat in front of you from reclining.

When the passenger in that seat complained, a United employee asked the passenger to remove the device. He refused, and the woman who could not recline her seat flipped out. She stood up and threw a cup of water in the guy's face.

The decision was then made to divert the flight to Chicago, where the two passengers in question were removed from the flight. No arrests were made, and the flight then continued to Denver, The Associated Press and USA Today reported.

United says that the use of such devices are prohibited on its flights.

Source: Free Beer & Hot Wings