James Corden Receives Backlash After NYC Restaurant Owner Calls Him 'The Most Abusive' Customer

James Corden is in hot water after a restaurateur called him out for being the "most abusive customer."

Keith McNally, 71, who owns several restaurants in New York City and London, including Café Luxembourg, Nell's, Lucky Strike, Pravda, Balthazar, Pastis, and more, took to social media to share his staff's encounter with the "The Late Late Show With James Corden" host.

"James Corden is a Hugely gifted comedian, but a tiny Cretin of a man. And the most abusive customer to my Balthazar servers since the restaurant opened 25 years ago," he wrote on Instagram Monday. "I don't often 86 a customer, to today I 86'd Corden. It did not make me laugh."

He cited two incidents from the manager's report when Corden was allegedly nasty to the staff.

In June, Corden reportedly showed manager G the hair he found after eating the main dish. He also allegedly threatened the staff to give them another round of drinks and take care of their drinks.

"This way I write any nasty reviews [on] yelp or anything like that," he reportedly said.

The second report happened on Oct. 9 when Corden and his wife visited the restaurant for brunch. His wife ordered an egg yolk omelet with gruyere cheese and salad, but a little bit of egg white was mixed in the egg yolk, so he complained to the server, M.K.

The kitchen remade the dish, but it was served with home fries instead of salad, which reportedly upset Corden, who allegedly "began yelling like crazy to the servers."

M.K. was very apologetic and brought manager G to his table. He returned the dish, and everything was fine. He also gave Corden promo Champagne glasses to smooth things out.

According to the manager, Corden was pleasant to him but nasty to the server.

Several netizens reacted after learning about the reports. Some shared the things they heard or experienced firsthand with the "Carpool Karaoke: The Series" star.

"I have heard from someone that says he's one of the worst celebrities that they've had an encounter with. I personally have never met him, so I have no opinion if it's true either way," one commented. Another added, "I can confirm he's not a good tipper either."

"I heard a similar story about him being awful to a fellow parent at a school fundraiser," Chad Lowe wrote.

Despite the backlash, some shared the pleasant encounter they had with Corden. One said he was "very down to Earth." Others also defended him for his behavior.

"He's one of the nicest celebrities I've ever met! He walked up to our table in LA and just started talking. Very down to Earth and funny," one wrote.

"If he found hair in his food I don't blame him for being mad," another person commented.

"To be fair to him, they admit there was a hair in his food, and when stuff was sent back they then brought back out the wrong order. The restaurateur is also notable for publicly banning famous people for publicity, so I'd take this with a pinch of salt (or a strand of hair)," a third person stated.

Page Six reached out to Corden for comments, but his reps did not immediately give a word about the issue.