The Prime Minister had a disposable coffee cup snatched away from him as he arrived for day three of the Conservative party conference.
In a scene reminiscent of satirical comedy The Thick Of It, a Channel 4 News cameraman caught the moment Boris Johnson was given the cup by an aide - only for a second aide to take the drink away moments later.
The second aide said: "No disposable cups" as she removed the drink from the Prime Minister's hands, which can be seen in the clip above.
As a man who is not particularly easy to embarrass, unsurprisingly Johnson responded to the situation with a sense of humour.
The PM later tweeted a picture of himself, holding a ceramic cup, and said: "I got my coffee in the end."
The news about the PM comes after the Tory party conference went into lockdown earlier when a senior Tory MP was kicked out of his party's conference after a clash with security.
Sir Geoffrey Clifton-Brown had attempted to bring his fiancee, who did not have the relevant pass, into the International Lounge at the Manchester event when he was stopped by a member of staff.
The Cotswolds MP is understood to have remonstrated with the member of staff, at which point security personnel intervened.
A Conservative spokesman said: "The incident was totally unacceptable. Geoffrey has been asked to leave Conference and we are establishing all of the facts to see if further action is necessary.
"We will always adopt a zero tolerance approach to any inappropriate behaviour towards our hardworking staff."
