On Sunday, the unidentified passenger attempted to keep an entire row to himself, and would not allow other passengers at the Shanghai Pudong International Airport to sit next to him, reported the Washington Post.

The United crew in Shanghai attempted to be patient with the man; however, he got more irate as time went on.

“He was trying to explain to the crew and captain … because he had points, he felt he deserved an upgrade,” passenger Clark Gredoña to Washington Post. “So this was his way of getting it.”

During the incident — which went on for nearly an hour — the man commented on his hat.

“I know people don’t like my hat,” passenger Alexis Zimmerman heard the man say, reported WaPo.

“He berated a female passenger,” Gredoña said. “I think he called her Hillary. Then he called her a lesbian. I think he called a stewardess ‘sweetheart.’ ”

The man was eventually asked to leave the aircraft by the flight crew. When he repeatedly refused, other passengers were required to deplane while local law authorities came to intervene. 

After spending time with Chinese law enforcement, the man finally left the plane and returned to the terminal. 

While in the terminal, a crowd of passengers chanted "Lock him up!" to the man.