Describing the leaflet as “cowardly and hateful,” Kara, who works for the NHS, says that while she is herself is not upset, it could be damaging to anyone “struggling with confidence and eating disorders.”

She tells Stylist.co.uk that she was on her way to meet her family at Euston, before heading to Birmingham's Christmas market, when she was approached.

“We had just pulled into Warren Street station when the man walked to get off the train and put the card on my lap before he got off,” she says. “Unfortunately I didn't see him, but did notice that he was ordinary looking, a middle-aged man in normal clothes.

“When I first read the card I thought it was some sort of joke and just put it down on the seat next to me, but when I thought about it a bit more I decided to do something about it, which is why I posted it on Facebook and asked people to share it.”

Kara says that as a part-time musician she is often in an environment where her looks are commented on, “but nothing like this.”

“I'm a size 12/14, always been what people call curvy, but I don't consider myself fat,” she says. “I'm active and go to the gym at least twice a week, don't smoke, hardly drink and don't do drugs. I have no health issues (that I know of) and have never been seriously ill or in hospital (touch wood) so don't consider myself 'a drain on the NHS'. In fact I'm currently employed by them.

“I work for a mental health organisation so am aware of how detrimental something like this can be to the wrong person. I hope they shut down all these negative websites, as they are encouraging antisocial and hateful behaviour and it is bullying.”

"He was an ordinary-looking middle-aged man" Women are being harassed on the Tube by stranger handing out 'fat shaming' cards