Antisocial Personality Disorder
A person with antisocial personality disorder has a pattern of disregard for and violation of the rights of others occurring since age 15 years that spreads through a long period of time.
Differing from ordinary people who understand that sometimes one needs to give up their own
preferences to care others, people with antisocial personality disorder are only concerned about
their own needs and will constantly and repeatedly ignore and violate other people's rights.
They seem to have little sense of responsibility, morality or concern for others and constantly
have trouble with the law. This behavior will occur since the age of 15 but only adults
18 years old or above are considered to be diagnosed with this personality disorder.
These people are often intelligent, competent and attractive people, and are
good at deceiving others. 
They can get promising jobs because they are good at manipulating
others, and their words can sound sincere, but their impulsive behavior lead them into doing
actions that reveals their true self - they increase debts, waste company money or commit crimes.
When caught, they can promise to repent in such a convincing
way that they can easily
get away with punishment and are given another chance. But they seldom keep these promises,
for what they say has little to do with what they actually think or do.
3% of the males in the general population have antisocial personality disorder.
1% of the females in the general population have antisocial personality disorder.
People with antisocial personality disorder will have a majority of the following symptoms:
- lack of concern for others
- lack of shamefulness and guilt
- do not as strongly dislike punishment as an average person
- have the ability of repeatedly lying and tricking others for their own benefit
- good at manipulating others
- have little respect for laws (e.g. repeatedly perform crimes)
- irritable and aggressive (get into physical fights)
- seek stimulation through dangerous acts
- do not think about safety of themselves and others
- irresponsible and has little sense of duty at work
