I travel a lot internationally. Of course you can't carry guns or even lockblades in most countries. I walk around at night - because I'm usually working during the day. Well, suffice it to say, when all you're armed with is your O-fficial Boy Scout (non locking) pocket knife with a blade under 2" (all that's legal in London for example), if you're me anyway, you really get practiced on (as someone else said) 360 degree situational awareness and egress plans. I also always carry a whistle too. (Picture somebody running away zigzag blowing a whistle at the top of their lungs - see what I mean?) When I observe other people I'm often dumbfounded at how little situational awareness they display.

Which, IMHO, is all part and parcel of not allowing yourself to be hauled away to your doom by a BG.

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But then, what do I know?