Sharon Osbourne is facing possible assault charges after she flung a glass of juice at and jumped on a bikini-clad model following a dispute on a reality television show.
The spat was filmed in December for Osbourne's US show Charm School but screened for the first time this week and immediately set tongues wagging.
The juice-throwing incident comes after a verbal joust between host Osbourne and former Playboy model Megan Hauserman during a "reunion" episode inviting back past contestants.
The footage shows Hauserman, 27, making reference to having her puppy "fixed" only to be chided by Osbourne as someone who should not be allowed to have children.
"I think you should join her and have that operation too," Osbourne says.
"I do not think you should be allowed to breed, my dear. I think that one of you is enough for any country."
Hauserman responds with a profanity-laden jibe about how Osbourne was only famous because of her "brain-dead" rocker husband, Ozzy.
Feigning a cough, Osbourne bends down to pick up a glass of juice and hurls it at her guest to loud cheers from the audience.
She then leaps onto the stunned Hauserman and the studio erupts in a roar as security guards flood the stage to separate the pair.
The footage does not make clear the nature of the attack, but Hauserman has since filed a complaint with police alleging Osbourne pulled at her hair.
The soaked model is then seen being taken from the set by security.
Hauserman, a veteran of reality show appearances, was evicted from Charm School by Osbourne six months earlier following much bad blood.
On evicting Hauserman, Osbourne said: "You've not changed … you're still a bitch, a real f****** bitch."