I did indeed enjoy Rory’s article. I have been hearing about hesitation since forever and how villains do not hesitate because they have no concern for the law. A law abiding citizen will hesitate to measure his own action. The real world is more complicated then this concept and criminal minds suffer from as many decision problems as anyone else. They may not be concerned about braking the law but they do fear pain and suffering. Their attack can be stopped if you detect the ambush and disrupt their plan. This moment creates hesitation on their part giving you a chance to alter the encounter. The criminal wants frozen rabbits for dinner not a mean dog.
Keep your distance beyond striking distance and it will thwart the ambush. At least you can see it coming and act.