Dealing with rude people is, unfortunately, part of life.

The vibe I’ve always gotten from him is cold and somewhat disrespectful…toward me.

If he said five words to me the whole day, I’d be surprised.

Jay Pharoah and Bill Hader on "Watch What Happens Live" show, discussing the worst-behaved musical guest on SNL. Hader mentions Justin Bieber as the worst

Bravo / Viayoutube.com

7.Playing a game of “Stir the Pot” onE!

Newsin 2023,Sharon Osbourneshared that Ashton Kutcher is the rudest celebrity she’s ever met.

9.In a 2022TikTok,Spencer Prattnamed Lisa Kudrow as the rudest celebrity he’s met.

Santa Claus holds up a Polly Pocket toy while Casey's character, in a cardigan, watches him. There is a decorated Christmas tree in the background

Nicole “Snookie” Polizzi shared her rude encounter with Joy Behar.

Rather than drink bird saliva, he shared that he had a rude encounter with Pierce Brosnan.

Graham said, “He’s not a storyteller, or very verbal.

JoJo Siwa, wearing a sleeveless top, smiles while holding a smartphone with a picture of Candace Cameron Bure on the screen

He’s a benign presence.”

15.Freddie Prinze Jr. had such a poor experience with costar Kiefer Sutherland that he almost quit acting.

In 2014, Freddie toldABC News, “I did24, it was terrible.

A man in a plaid jacket asks, "Who is the biggest dickhead celebrity you have met?" Below, Mel B answers, listing James Corden, Geri Halliwell, Jessie J, and herself

I hated every moment of it.

Kiefer was the most unprofessional dude in the world.

I just wanted to quit the business after that.

Two image frames: Top shows a man speaking, with a caption, "But Geri — that's your… your former Spice?". Bottom shows Mel B, responding, "I know. I love her to bits, but she's really fucking annoying."

So, I just sort of stopped.”

Big Narstie and Mel B on a talk show. Mel B criticizes James Corden, emphasizing the importance of being nice to all crew members

Kathy Griffin in an elegant gown and Jon Hamm in a tuxedo on the red carpet

Kathy Griffin and Ashton Kutcher on stage. Kathy holds note cards and wears a velvet jacket. Ashton holds a microphone, dressed in a blazer and light shirt

Sharon Osbourne and Kelly Osbourne discussing the rudest celebrity they’ve met on a talk show; Ashton Kutcher is mentioned

Two photos of Spencer Pratt. Top text: "Oh, that's easy, Phoebe from Friends." Bottom text: "Hands down, one of the worst humans I've ever come in contact with by far."

Snooki recounts an encounter with Joy Behar on "Duck Phone." She shares how Behar questioned her Italian heritage while referencing the show "Jersey Shore."

Deena says Ryan Reynolds didn't want to sit by them, and Sammi says maybe he was having a bad day

Khloe Kardashian and James Corden discuss a rude celebrity encounter on a talk show. James says Pierce Brosnan pushed him out of the way at a U2 concert

Kiefer Sutherland and Freddie Prinze Jr. in a scene from "24," standing on a rooftop with a helicopter in the background. Sutherland wears a leather jacket

Valerie Bertinelli discussing an encounter with Christina Aguilera, sharing she received a cold response when complimenting the singer at a Van Halen concert