MORE IDEAS FROM THE ARTICLE
Narcissists lack empathy, so telling the truth does not matter to them. They may not even realize they are lying most of the time, because they are not aware of it.
Don't make an excuse for somebody that lies to you. You don't have to take the blame.
People often feel the need to rationalize their dishonesty. The danger is taking that first step.
The story of Joe Papp, an Olympic cyclist falls into this category. Papp consulted his physician, who wrote Papp a prescription for erythropoietin (EPO), a cancer treatment that increases the production of red blood cells. Papp injected himself, but also imported and distributed EPO to his team and to other teams. This essentially made him a drug dealer.