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.
The moment a Buckingham Palace guard slips up, captured on video by a tourist http://bbc.in/1J2ks7W
Posted by Pak Tech Insider on Wednesday, April 15, 2015
