A nightmare flyer who was filmed screaming in the face of a horrified air-stewardess and slapping a fellow passenger is a mum-of-one who was on her way to Turkey for dental treatment.
Catherine Bush was chucked off the flight from Manchester Airport to Antalya, in Turkey after she "displayed a catalogue of aggressive, abusive and dangerous behaviour".
The horrifying conduct included "physical aggression towards other customers and our crew," carrier Jet2 say.
The airline banned the abusive flyer for life and also fined her £5,000.
Now, a friend of Bush has claimed that she had been on her way to get teeth whitening treatment for £3,000.
The friend told MailOnline: "I was with Catherine in the pub at the weekend. She told me she was excited about going to Turkey.
"She said that she had scraped together £3,000 from her savings for cosmetic surgery on her teeth.
"She was going to have them whitened."
Footage of the angry woman, thought to be from Kirklees in West Yorkshire, went viral as the appalling incident was filmed by shocked passengers on Monday morning.
Bush was recorded screaming and marching up and down a flight which had to be diverted to Vienna just over two hours after leaving the UK.
In the video, the woman is seen screaming in the face of a uniformed staff member at the front of the plane.
As other flight staff gather around her to aid their colleague, it looks as though she lashes out with her hands against someone seated in the first row.
A member of staff can be seen telling her to 'stand back', to which she replies: "I am back. Sort your head out you."
The airline worker says: "You are not doing yourself any favours."
She replies: "You're not doing yourself any favours either.
"So what have I done? Don't touch me, don't ****ing touch me."
She adds: "What have I done? What have I done wrong on this flight, eh? See, you haven't got an answer."
Another passenger, who asked only to be named by her first name, Emma, told The Mirror it was about 40 minutes into the flight when the disruption started.
She said: "The flight attendant was trying to calm her down.
"She was being really loud and arguing with the passenger in front of her. That went on for about 40 minutes.
"They gave her notice that any more trouble and further action would be taken and were telling her 'we're not here to be horrible to anybody'.
"She was not having any of it. She was aggressive and swearing, it was not a nice experience.
"You didn't dare look at her.
"At one point I walked down the aisle to go to the toilet with my little girl and she said 'what the f*** are you looking at? Go on, have a f***ing look all of you.'"
Phil Ward, managing director of Jet2.com, said: "Ms Bush displayed a continued pattern of appalling behaviour on the flight and she must now face up to the consequences of her actions.
"We have always made it abundantly clear that, as a family friendly airline, we take a zero-tolerance approach to such behaviour and that we will vigorously pursue any costs incurred as a result of such an incident.
"Although such incidents are very rare, it is unacceptable that our customers and crew should have to experience it.
"We would like to apologise to anyone who had to experience this behaviour and we would like to commend our highly-trained crew for their exceptional handling of this difficult situation."
The airline says it will fully support the authorities with any subsequent investigation.