Footage has emerged from the UK showing the dramatic moment a Queen's Guard pulls his rifle on a tourist after he touches the guard on the shoulder.
The soldier initially ignores the cheeky tourist who mimics his marching outside Windsor Castle but when the young man touches the guard's shoulder, he snaps.
"Step back from the Queen's Guard," the soldier shouts and points his bayonet at the man, who quickly jumps out of the way.
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Queens guard, windsor castle.