My ex-narc did this after he and his supply had a baby during our marriage. The male judge saw through my ex and found him to be an adulterer and morally unfit thus documenting all my ex's misdeeds for future reference.
Children of narcissists learn this very quickly. If left unchecked also can morph into a kind of PTSD. The stress of doing that on the daily will take years off your life. Fight or flight at all times.