Natalie Blencowe, a 36-year-old junior doctor who is training to become an academic surgeon, hit out at the Prime Minister's criticism of Jeremy Corbyn at PMQ's earlier today, in which the prime minister urged the Labour leader to "put on a suit, do up his tie and sing the national anthem".
She tweeted a picture of herself on an 8am-8pm research shift, saying: "No smart suit. How exactly do ties help us separate sound science from spin & sexed-up stats?"
The hospital worker has been qualified as a doctor for 12 years and still has four more to go on her course, but wasted no time in picking Cameron up on his response to a question on weekend death stats asked during Prime Minister's Questions.
The PM rebutted queries Health Secretary Jeremy Hunt had used unverified and unpublished research to blame junior doctors for weekend deaths by admonishing opposition leader Corbyn for his dress sense.
When HuffPost UK asked her to elaborate on the quip, Natalie cited - "funnily enough" - Margaret Thatcher.
She used a quote by the former Conservative leader and prime minister, who famously long grappled with union bosses during her premiership in the 1980s, to rubbish Cameron's remark.
The Thatcher quote is: "I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left."
The medic added: "Pretty much sums it up for me - I thought it was stooping pretty low."