There has been yet another case of out-of-control air rage caught on camera in the United States.
This time, a passenger on a United Airlines flight to Los Angeles began to threaten crew and fellow passengers who asked him to... you guessed it, simply wear his face mask while onboard.
The video has been viewed more than 4 million times in less than a week.
It begins with the aggressive man telling staff: "Take me off, I don't even want to go to Cali." His rant continues and becomes more threatening.
"I will find your name, date of birth and address. I'll know your social security number before I get off this plane," the man says before pushing the passenger next to him.
According to another video shared online, the man had been asked to hang up his phone and to put on his mask four times.
Viewers of the video have labelled the man a "maskhole": A term for people who act aggressively when asked to adhere to mask wearing rules.
He then tells another passenger to mind their business.
"'Cause I'll break your neck," he tells one.
Warning: The embedded video contains potentially offensive language:
The video ends with the man being met by police officers as he yells "let's go to jail".
Comments on the video were quick to point out that the man had underestimated the consequences of his actions.
"Do people not understand that these are FEDERAL charges, when they get spicy on a plane, welcome to the no-fly list."
A Californian TikTok viewer also had this to say: "As a person in Cali, we don't want him."
The United States Travel Safety Administration (TSA) has increased penalties for passengers who refuse to wear a mask to US$500-$1000 for first offenders and US$1000-$3000 for second offenders, however penalties for violence or disruption of a flight can result in fines of tens of thousands of dollars and lengthy prison sentences.