Narcissistic Abuse: Red Flag Behavior & The Four Golden Rules

Communicating with narcissists is extremely difficult. There’s no world in which setting a boundary with them directly lands, as it’s only seen/framed as a slight against them. There are two major acronyms that come to mind when it comes to conflict with narcissistic or antagonistic people: What exactly do these acronyms mean? And what are the four “golden rules” when it comes to navigating communication with a narcissist?