The onlooker was watching two combatants battle it out in the enclosure when he had to call on some lightning-like reflexes.
Generally speaking the swords used at these events are blunted to allow enthusiasts to fight it out safely, however they do occasionally break.
In a video added to YouTube a few days ago, you can see the moment a sword breaks and flies towards the spectator.
Lucky he just manages to duck in time.
At least we know he is not headless in a crisis … sorry!