Video: Incredibly lucky man avoids rock blown from factory demolition by inches

Stray rock very nearly killed onlookers

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A spectator at the demolition of a textiles factory in the Czech Republic came terrifyingly close to a potentially fatal blow from a stray rock that exploded from the site.

The chances are health and safety rules regarding safe distances from demolitions aren't quite so stringently enforced in the Czech Republic, but the onlookers were still quite a long way from the explosion and were clearly not expecting to be in the path of any debris.

A rock about the size of a grapefruit hurtles at a man and a woman in a video posted on YouTube, also narrowly missing the person filming it.

Buildings belonging to clothing company OP Prostejov were being demolished, which formed the largest Czech textiles factory.