A prominent restaurateur has called out James Corden for abusive behavior toward wait staff and banned the comedian from his New York City establishment Balthazar.

Keith McNally, creator of the popular French restaurant and many others, wrote in an Instagram post on Monday that the Late Late Show host 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.

McNally said it was rare for him to nix a customer, but he had banned Corden that day. He shared two examples of Cordens treatment of his staff and noted that the comedian had behaved similarly in another restaurant he previously owned, Cafe Luxembourg, several years ago.

In one instance, in June, the British comedian apparently found a hair in his food and after eating his main course, showed the hair to the manager referenced as G who was very apologetic.

Corden was extremely nasty to G, and said: Get us another round of drinks this second. And also take care of all of our drinks so far. This way I [dont] write any nasty reviews in yelp or anything like that, McNally wrote, citing a managers report.