Awareness, managing unknown contacts, physical fitness, and unarmed defensive skills will be critical. Anything you might carry will require good unarmed skills to really use well.
The Malkoff Bodyguard V2 flashlight with the full shroud over the tail switch makes a really nice flashlight as well as a really nice improvised striking instrument if needed. It does not have crenellations or any other features which scream weapon.
My favorite pens are the Tuff Writer Retro Click pens. Nothing about them screams tactical pen. Unfortunately many of the retro clock models are not regular production items.
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