Having worked as a walking guard for years, I can say that, at least for me, my patrols are VERY "static". I go the exact same way and do everything EXACTLY the same, just so it's as quick and easy as possible. I do look around and try to be aware and such, but I certainly don't "mix it up" and go another way. Man, this stupid crappy job sucks the life out of me, I gotta quit and do something more productive with my life!