Some people ignore the rules and don't pay attention to the limits that others set on their behavior (we think of them as high-conflict people or HCPs or bullies) unless a meaningful consequence will follow if they violate the limit. HCPs often (but not always) have Cluster B personality disorders- narcissistic, borderline, antisocial and histrionic personalities-which studies show have a strong association with being domineering, vindictive, and intrusive. 1