What scares a narcissist the most?

Although narcissists act superior to others and posture as beyond reproach, underneath their grandiose exteriors lurk their deepest fears: That they are flawed, illegitimate, and ordinary.

How do you humiliate a narcissist?

Don’t try to persuade an absolute narcissist. Instead, humiliate them, cut them. Make them bleed in any exchange with others listening in, whether face to face or in a Twitter exchange. Talk past them to the audience.