thought illnessYet as a rule may not even be a really violent or even combative man or woman--this is what 'Borderline' means and relates to. Inner Aspects of Borderline Personality Disorder: A person with borderline personality disorder or mentally shaky personality disorder is exclusively relying upon peer influence. Above all others, those with this particular circumstance are more likely to peer pressure and easily manipulated by peer influence. I can offer several example cases as to why I assume it is driven by an human being's need to nourish off acceptance. For one, the whole thing they do is wholly based on that fact. Which is why they often times resemble that of Sociopathy, Psychopathy, Antisocial Personality Disorder, and even Manic melancholy.
Handy Online Medical Dictionary