The robbers started this with an advantage of initiative, numbers, preparation and mental preparedness. This is why the ambush is the most effective form of attack. If the shop owner were to react at this time, he would lose the majority of the time.
This shop owner feigns submission, waiting until the robbers are no longer focused on him and draws to fire when they are at their most vulnerable. This is a counter-ambush.
Some of the most incredible combat footage ever captured on film. There is not much else to say other than it must be watched.
Notice how he takes a safe angle to prevent any bystanders getting hit.
The most effective way to attack is the ambush. It is so effective quite simply because the victim is unprepared tactically and psychologically. It causes damage before they are aware their attackers exist, followed by confusion and fear. It’s a sucker punch on another scale entirely.
In this video, two Kurds ambush and kill several Turkish soldiers who never stood a chance.