Queen Elizabeth II was known for her cheeky sense of humour. From her adorable sketch with Paddington to her hilarious one-liners, the late monarch earned herself quite the reputation.
But fans will be delighted to learn she was just as playful away from the cameras. One particular trick, which regularly goes viral, might just be the best royal prank of all time. As her former protection officer Richard Griffin recalled, two American tourists once failed to recognise the Queen during a stroll around her Scottish estate.
Spotting a chance to have some fun, she played along with what is now a fabled exchange.