One question that comes up often is the danger attached to blank gun use and the most common question I get is about the danger of shooting a blank gun at a person. Blank guns have many uses, one of which is to be used as a prop in a movie or reenactment. In this situation one may want to point and shoot a blank gun at a person to make teh scene more believable it. If the person is far enough away there is usually no cause for concern but with that said I would personally point the gun just off to one side in the event that something might come loose within the gun barrel or perhaps a fragment of something where to be fired and cause an injury to the person the gun is directed towards. With creative camera angles you shouldn't need to actually point a blank gun directly at anyone.
People also assume that because a blank gun does not actually fire a bullet that it is relatively harmless. This is not true at all, in the larger caliber blanks there is about the same amount of energy to what your would find in a real bullet, this is so the blank gun will sound about as loud as a real bullet being fired. The difference with how the energy is released in a blank round versus a real bullet is that the bullet caries most of the energy with it and when the bullet hits its intended target, the bulk of the energy is transferred to that target.
The energy from a blank round dissipates almost immediately after it leaves the gun barrel but the energy right at the barrel tip is very similar to that of a real bullet, especially if it has nowhere to go but directly into an object. So yes a blank gun round can be lethal at very close ranges and unfortunately several people have paid with their lives finding this out for themselves.
With this newfound information about blank gun danger, some people might say... get rid of these dangers to society! Before we head in that direction think about how many other non vital things we have in our lives that I would have to say have claimed way more lives than blank guns could even come close to: Off-road pleasure vehicles, Skydiving, Skying, Pools, Real Guns to name a few! Blank guns also serve very useful purposes like being used to signal a warning or distress, send out flares, ward off wild animals, train people on how to use a real gun, and of course dog training. I am sure the good outweighs the bad here.
That's enough politics for now, juts watch the video and see for yourself why you should not point a blank gun at anyone, especially if the person is very close in proximity to you!