A flight attendant on a flight from New York to Chicago wished a man "Merry Christmas" as he boarded the plane. He then told the flight attendant to not with him Merry Christmas as not everyone is religious.
Once on board the plane, the flight attendant wished the other passengers a Merry Christmas as the passenger grew more and more irate. Eventually, he got out of his seat and started yelling an obscenity-laden tirade at the stewardess.
Other passengers began to become upset with the angry passenger and tried to calm him down. However, this man was not in the mood to be calmed down and kept yelling.
In the end, he was escorted off the plane by flight marshalls.