Security is Security. Period. No matter whether you’re designing a network, traveling around some third world country or assessing the pollution of the food you’re going to eat: security prowess comes from the confrontation of danger(s).
There is something different in people who’s been exposed to dangers of every sort (soldiers, firefighters, ER personnel) and those who don’t: the former knows what they’re talking about, the latter don’t. You can read it in their eyes, demeanor and down-to-earth approach, contrary to the pompous, empty style of somebody who can’t even handle spending half an hour on Barcelona’s Las Ramblas without being pickpocketed.
Think about it, the next time a “security” consultant tells you that “you have a security problem” and that “he can fix it”.