Following Swa Dharma = SAtvikSAtvika action(s)
Don't limit SAtvikSAtvika with a very calm & non-violent person alone.
One easy way to decide right/wrong is to keeping your self in others' shoes (situation). Will I like if done with me?
"How""'How' can we decide what is dharma, in a "particular"'particular' situation.
"How"'How' -- Natural Selection.
"particular"'particular' -- Ofcourse, no single answer. Quite possible that, if you and me are put in a "particular" situation and we may act differently, yet both act perfectly in Dharma.
"Natural Selection" is the way of SAtvikSAtvika life. It's neither "Selfish Selection" (RAjasicRAjasika) nor "Random"Impulsive Selection" (TAmasicTAmasika).
Above 2 verses say it all. There are always fault (findings) in all the actions. But just because the actions are faulty, one should not abandon them; If really abandoned then, such wrongful sacrifice is RAjasicRAjasika[BG [BG 18.8].
e.g.
"Dharma is eternal truth, I am sure it is unchangeableunchangeable"
so"so what is dharma for Rama and Krishna is dharma for me."
someone"someone with intent of destroying asks about my address, what should I do?"
Manusmriti"Manusmriti Dictates that bramhachari should not communicate with any
female ..."
Finally, all the actions are not in anyway our control. They are done by God. e.g. Not fighting the war was not a choice for Arjuna. It was just a momentarily frustrationtemporary repulsion before the battle started. He was anyway destined to fight: