Somewhere along the way during human history, the essence of trust was forced to retreat.
In a country like Vietnam where people had to suffer one occupation after another, and one war followed by the next, seeing a foreigner does not call out the essence of trust as a first principle. Warmth has to be won, encouraged out of people especially if you were like me armed with a camera. It is always a wonderful gift when a smile appears after a frown, and when trust is allowed to soften a human dealing.