@CobaltVelvet Some of us learn to distinguish earlier in life than others, mostly because we are at the wrong end of the gun...
"Strong men" are at least visible.
A more pernicious type of person are people who cultivate an image of kindness.
I remember seeing a bit of footage of Obama about to get his picture taken. He put on an instantly convincing smile in a split second. It disturbed me a bit, because he can put that smile on any time he wants, and it looks completely genuine...