Interesting use of "Holding" and the fact that people who were never the descendants of slaves (in America at least) still act the same way. They know this guy won't shoot in their conscious minds but their instincts tell them to not get too close and swarm.
Its like they are acing like the planets 'antibodies' or T-cells for weakness in the human race. Maybe mother nature is really on their side like Varg claims.. maybe they are doing the greater good?
Let The Weak Fall...
For a description of holding, with extensive examples, see The Logic of Steel.
Being a Bad Man in a Worse World
Fighting Smart: Boxing, Agonistics & Survival