http://www.psychone.net/disorders/narcissism-definition.php
‘Narcissistic personality disorder’ is a type of ‘manipulative personality disorder’. One characteristic is that they “don’t know when to stop digging” because of extreme arrogance (over-confidence).
[IF YOU FIND YOURSELF IN A HOLE THE FIRST THING TO DO IS STOP DIGGING: WILL ROGERS]
https://me.me/i/if-you-find-yourself-in-a-hole-the-first-thing-3441046
Lack of empathy is another of several very distinctive traits. But, he’s not alone. A sense of entitlement is increasing the number of people with this condition.
https://health.usnews.com/health-news/family-health/brain-and-behavior/articles/2009/04/21/narcissism-epidemic-why-there-are-so-many-narcissists-now
Note: As a school teacher, I ran across a few parents who were classic narcissists. They made their kids’ lives a living hell:
Toxic Parents (10 minutes)
https://youtu.be/XlwvxZwP4B0