From The DVD -
THE CORNER - Staple of Tactical Movement -
You find corners everywhere in modern and ancient architecture. Knowing how to negotiate one is the fundamental skill. There are corners and there are architectural features that are made up of corners. A door is basically two corners with a tight opening. An intersection of two hallways is a double corner. You can find more examples.
First is recognition of the corner and identification of it being Right or left Sided Corner. We show you ways to deal with each one of those two possibilities. Then Identify the “Apex” of the corner. This is the corner's edge which you will use to pivot your movement on. Identify “Line Of Danger”. This is the imaginary line that is created by the opposite wall and where you must be careful the closer you get to it.
Once this is done, its easy to Determine A Path of Angular Search. Eyes, Muzzle, and Target are kept in alignment in some Situationally Appropriate Ready. Move naturally and not in some crab-walking mode. There are direct correlations between “taking the corner” and the Force On Force/Get-Off-The-X methods you already know.
Once you can do a corner smoothly and safely, all other architectural obstacles will have an answer.