Humans are complicated beings whose attitudes and behaviors are shaped by numerous factors. These factors might be biological, psychological, social, or spiritual. Some are primarily neurobiological, others environmental. Sometimes these components combine to form one or more of the personality disorders in a trifecta of sociopathy, narcissism and borderline personality disorder. The Triple Threat The combination of sociopathy, narcissism and borderline personality disorder can be looked at more closely in these ways: Psychology Today describes antisocial personality disorder as having characteristics such as disregard for the rights and feelings of others. The magazine differentiates the condition from sociopathy, which is an impairment of conscience, and psychopathy, which is total lack of conscience. To someone with any of these diagnoses, other people are utilitarian: When they\u2019re no longer of benefit, they\u2019re discarded, emotionally or physically. People with these conditions can charm and scam others into trusting them before disappearing with money, property, or hearts. The magazine defines narcissistic personality disorder as having grandiosity, a lack of empathy, and what one therapist calls \u201ccenter-of-the Universe-itis\u201d \u2014 enjoying being the focus of attention at nearly all costs. Vanity and arrogance are also hallmarks. The third component of this triple threat is borderline personality disorder, the highlights of which are instability in relationships, dramatic and rapid mood swings, fear of perceived abandonment, and exhibiting high-risk behaviors, including drug abuse and self-injury, according to Psych Central. People with these attributes often create chaos and drama, as well as demonstrating all-or-nothing thinking: People in their lives are either savior or enemy. Personality Disorders on Screen Movies have been a cultural platform for characters with these qualities. \u201cSingle White Female,\u201d starring Bridget Fonda and Jennifer Jason Leigh, depicts a woman with a devastating secret that distorts her perception of life and relationships, contributing to violent actions. Hedy, played by Leigh, could be diagnosed with borderline and antisocial personality disorders. She seems able to care for others\u2019 well-being on a limited basis \u2013 as long as she feels their well-being serves her needs. Hedy has no sense of self; she adopts the appearance, behaviors and mannerisms of Fonda\u2019s character, Allie, to bond with her and to take on an identity because hers is so fractured by trauma. \u201cFatal Attraction,\u201d starring Glenn Close and Michael Douglas, is a classic example of borderline personality disorder: Close plays a seductive, eventually jilted, woman who lures in her prey, then displays aggression against herself and Douglas\u2019 character. Close\u2019s Alex charms Douglas\u2019 Dan and his family and gains their trust, then rapidly turns against them when she feels abandoned by her one-night-stand lover. Coincidentally, Michael Douglas plays a character with both antisocial and narcissistic personality disorders in the hit \u201cWall Street,\u201d in which the ruthless businessman Gordon Gekko utters the classic line, \u201cGreed is good.\u201d He has no regard for the existence of others except as they serve his ends. Power is his watchword, and he enjoys the trappings a lifestyle that carries with it an air of respect. As with the aforementioned characters, when he feels his power threatened, he attacks. A behavior common to each of these personality disorders is \u201cgaslighting.\u201d The term comes from the 1944 film \u201cGaslight,\u201d starring Charles Boyer as a husband so determined to protect a secret that he drives his wife, played by Ingrid Bergman, into insanity. Psychoanalyst Robin Stern\u2019s book The Gaslight Effect: How to Spot and Survive the Hidden Manipulation Others Use to Control Your Life explains that the person on the receiving end of this behavior is meant to doubt his or her perception of reality if it differs from that of the person in power. To maintain control, people with personality disorders need to make the other people in their lives wrong. Manipulative people try to gain the upper hand by denying making certain statements, accusing others of disloyalty, and encouraging second-guessing. Surviving the Personality Disorders of Others So how do you live with someone who exhibits these qualities? Try these tips: \tAs much as possible, trust your instincts. If your gut tells you something\u2019s wrong, it likely is. Stay grounded in reality, checking in with people whose perceptions you can believe. \tCommunicate calmly. Your anxiety might encourage the other person. For example, he or she might say, \u201cSee? You\u2019re the one losing it\u201d and suggest you\u2019re therefore in the wrong. Those with antisocial personality disorder often have a calm demeanor. \tModel consistency if possible, holding the person accountable for his or her choices. \tSeek therapy and encourage it for your loved one. Al-Anon might help if addictions factor into the problem. \tKeep in mind that dialectical behavioral therapy and cognitive behavioral therapy, as well as mindfulness practices, can be helpful with these conditions. \tBe aware that to maintain power, the person might try to cause rifts between you and others. \tGet yourself and anyone else in danger to safety if behavior escalates to threats or violence. \tHonor yourself and leave the relationship if your best efforts fail. Even in cases of mental illness, you owe no one your safety or soul.