The Queen was almost shot by a guardsman in the early hours of the morning, it has been claimed.
In the diary column of The Times, an unnamed soldier said he spotted a figure in the darkness in the palace gardens.
Thinking he had come across an intruder, he shouted: "Who's that?" before realising it was the Monarch, who apparently likes to take a stroll when she cannot sleep.
The shocked ex-guardsman reportedly said:
"Bloody hell Your Majesty, I nearly shot you!"
The Queen's apparently quick response:
"That's quite all right. Next time I'll ring through beforehand so you don't have to shoot me."
It's believed the encounter took place several years ago at Buckingham Palace.
If the report is true it wouldn't be the first time a member of the Royal Family had been mistaken for an intruder.
In 2013 Prince Andrew was confronted by armed police as he walked the gardens at the palace.