He's been trying to adhere to royal etiquette for nearly a century, so it's understandable that the Duke of Edinburgh sometimes gets frustrated with all the protocol.
His slip-ups in the past have been well documented, but today Prince Philip outdid himself by dropping an f-bomb on camera.
The 94-year-old was attending a photocall at the RAF Club, marking the 75th anniversary of the Battle of Britain, when the outburst occurred.
After growing impatient with photographers - as he posed in a full suit and tie in the heat - the Duke appeared to tell a member of the crew to "just take the f**king picture".
Prince William, Prince Edward and Edward's wife Sophie were also in attendance at the commemorative lunch event in London.
