Bet he got a right ticking off when he returned to barracks!!!
Buckingham Palace guard grins and bears it after fall
15 April 2015 Last updated at 11:43 BST
The guards at Buckingham Palace are notoriously difficult to distract, with many tourists finding it impossible to get them to raise a smile or react to anything they do.
But one holidaymaker who was filming the changing of the guard got a surprise when one of the soldiers suddenly slipped and fell to the ground.
http://www.bbc.co.uk/news/uk-32313975
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