The PM appeared to have been caught off guard by the Tonight programme host Julie Etchingham’s daring question as she burst out “Oh, goodness me”.
Etchingham asked: “What is the naughtiest thing you ever did?”
To which Mrs May said: “Oh, goodness me. Well, I suppose – gosh – do you know, I’m not quite sure.”
And as the ITV host insisted there must have been a moment, the PM admitted she had indeed “misbehaved” as a child.
Theresa May admitted the naughtiest thing she has ever done on ITV
Theresa May said: “Nobody is ever perfectly behaved, are they?
“I have to confess when me and my friends used to run through the fields of wheat.”
Finishing of the shocking revelation, she added: “The farmers weren’t too pleased about that.”
Twitter users appeared amused with Mrs May’s confession as they started pointing out other moments where the PM had been “naughty”, including the moment she gave German Chancellor Angela Merkel a kiss on the cheek.
I don't know, Theresa. You once touched and even kissed a… *ahem* European. You saucy devil. pic.twitter.com/K10hU8JIxt
— Nick Nomi (@Nick_Nomi) June 6, 2017
so, the crop circles and to think we blamed aliens ������ You're spoiling us with this top of the agenda news
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— Maggie Mannifield (@MaggieLovesRL) June 6, 2017
Nobody is ever perfectly behaved are they?
Nick Nomi wrote: “I don't know, Theresa. You once touched and even kissed a… *ahem* European. You saucy devil.”
While Rachel Notely added: “I am shocked by the level of rebellion. That friendship group must have been reckless!!”
While another suggested perhaps the PM was responsible for crop circles: “So, the crop circles and to think we blamed aliens. You're spoiling us with this top of the agenda news.”
— Meera Pattni (@meerapattni) June 6, 2017
Theresa May awkwardly eating chips could be 2017's 'bacon sandwich' Tue, May 2, 2017
Theresa May suffered what has been suggested to be her “bacon sandwich” moment after pausing for a quick snack while on the campaign trail
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Britain's Prime Minister Theresa May eats chips as she meets with residents in Mevagissey, south-west England, on May 2, 2017, during a campaign visit ahead of the forthcoming elections
During the interview, Mrs May also spoke about her own life and the difficulty of having lost her parents shortly after marrying.
It comes as Mrs May insisted the general election had come down to a stark choice about leadership ahead of the vote on June 8.
The PM said people have to decide between her record of backing the police and security services or the "abdication of leadership" offered by Jeremy Corbyn and his hard-Left Labour allies.
Mrs May said: "It's about which leader and which team people trust to take the big decisions that matter to Britain, about which leader and which team people trust to keep Britain safe."