It's rare for a tourist to be able to meet the Queen in person as one would generally need to set an appointment or rather, be summoned to stand before the Queen, however, there are very rare occasions when one could meet the Queen on a leisurely stroll at her estate.
Now, some unwitting tourists had the chance to actually meet the Queen but failed to recognize her, even asking whether she has already met the Queen. And to this, she responded with a little quip.
(Image credit: Graham Laird/Wikimedia Commons)