Leedom makes things very simple. In the article, Leedom simply asserts that it is the lying that defines a sociopath. If you recognize the lying, you can recognize that you've got a sociopath on your hands. Leedom explains, a sociopath's lying is not your average harmless white lie, and therefore relatively easy to recognize. A sociopath lies to manipulate or uphold an image that he has created through his lying. The lie, or lies, can be absolutely stunning and can take your breath away if you've taken it for granted that what he's told you is reality.
According to Leedom, you don't need a checklist to know if you've encountered a sociopath. Identifying a sociopath is as simple as this: "If you are astounded by another person's capacity to lie and misrepresent reality, you can be sure you have encountered a sociopath."
Yep, I've been there, done that. Once I was told such a whopping lie that he upheld for an entire year, that when it took me a few days to digest the fact that I'd been lied to in such a big way, he actually got angry at me for "not getting over it yet." Nice, huh....
You just can't win when you're with a sociopath. But you can leave! :)