I’m guessing antisocial personality disorder
Per the Mayo Clinic site
Antisocial personality disorder signs and symptoms may include:
Disregard for right and wrong - brazen lying
Persistent lying or deceit to exploit others - ummm, yeah
Being callous, cynical and disrespectful of others - hasn’t exhibited this to my knowledge
Using charm or wit to manipulate others for personal gain or personal pleasure - heard a few people here say he’s charming
Arrogance, a sense of superiority and being extremely opinionated - hasn’t exhibited this to my knowledge
Recurring problems with the law, including criminal behavior - ponzi scheme, theft in brazil, stealing money from the veteran with the dying dog
Repeatedly violating the rights of others through intimidation and dishonesty - haven’t seen him intimidate anyone, yet
Impulsiveness or failure to plan ahead - brazen lying
Hostility, significant irritability, agitation, aggression or violence - hasn’t exhibited this to my knowledge. This personality disorder also includes psychopaths
Lack of empathy for others and lack of remorse about harming others - ponzi scheme, theft
Unnecessary risk-taking or dangerous behavior with no regard for the safety of self or others - brazen lying
Poor or abusive relationships - I remember he said he had a boyfriend weeks ago but that guy just kinda disappeared
Failure to consider the negative consequences of behavior or learn from them - pretty much all the lying, theft he’s done for years
Being consistently irresponsible and repeatedly failing to fulfill work or financial obligations - ponzi scheme fits into this
Sociopaths and psychopaths are also categorized as antisocial personalities. There are degrees of antisocial behavior along a spectrum.
People with borderline personality disorder exhibit extreme anger. I haven’t seen this with Santos.