It pays to be aware of your surroundings. The more treacherous they are, the more you had better be aware of them.
That said, I have witnessed exactly what Fire Forged just mentioned- stand in one place, swivel head exactly the same each time and look ahead w/o seeing anything. Stationary dance moves.
In a scrap, the only way I'm standing still is to fire a precise shot or two- or after I am behind cover.
God bless the Sanitation Department- they provide both fixed (dumpsters) and moving (trash trucks) armor, essentially free of charge.
“Nine-tenths of tactics are certain, and taught in books: but the irrational tenth is like the kingfisher flashing across the pool, and that is the test of generals. It can only be ensured by instinct, sharpened by thought practicing the stroke so often that at the crisis it is as natural as a reflex.” ~ T. E. Lawrence