Only 1% of the population has been officially diagnosed with narcissistic personality disorder (NPD), but it is estimated by professionals that the real frequency is around 15% to 20%. This means that there is a high chance that most households have a narcissist in their midst. These individuals are characterized by extreme levels of self-centeredness, to the degree where they are acting at the expense of their close relatives. They are known to behave in entitled and arrogant ways, which everyone is capable of, but narcissists take it to the extreme. 

Not all narcissists act the same. There are five designated subcategories, but it is important to recognize the defining traits of each. Grandiose narcissists have high levels of charisma and are usually successful. Vulnerable narcissists have a huge victim complex and always feel entitled to reparations from others. Malignant narcissists are prone to manipulation and a lack of empathy towards others, which makes close relationships with them difficult. Communal narcissists get validation by doing good deeds that get praise from others, rather than acting with kindness with real intent. Dark empaths are able to blend into the general population the easiest, due to having above-average emotional intelligence.