"...who is to say or judge where or when [a] dark side"
I agree, its personal to each person.
You are also correct that one need not be directly engaged in combat to be "combat harden" or experience "shell shock," for I'm sure the late good doctor Zeev Hed "cup runneth over" with his parents murdered and daughter living in a nation under attack.
We all heard of extreme mental and physical anguish suffered by people through acts of nature or the deliberate or indifference of other people.
ok ok ok... I have the powers of clairvoyance and now receiving your thoughts:
"ROSIE, This is a Happy board."
ok, rename "Cowboys and Cowgirls" to "Happyboys and Happygirls" or "HappyTexanCows" :)
"With the roses comes the thorns." or, A chicken & egg quesion:
Plant a rose seed and what appears first, the flower or thorns?