Oh, jeez ... thanks for that link.
A few weeks ago, I found a price-slashed book, “The Sociopath Next Door,” by Martha Stout, PhD, that i have found to be quite interesting and informative. I’m only 1/2 way through it, but it has helped me to clarify my thinking.
She deals with the psychology of people who have no conscience. Roughly 4 out of 100, or 1 out of 25 people have none. 96% of us do. She tells how to spot them and what the techniques are that they use to manipulate us.
Bottom line for spotting is, do they have a pattern of doing outrageous, harmful, and inappropriate behavior followed by a pity play? Classic example would be the wife beater pattern which has in recent years become more publicly examined and analyzed.
I recommend this book to any who are interested in this topic!