The number of people who are genuinely uncontrollably sick is very small. most people, no matter how much they may besuffering from physical or mental illnesses, make choices about their behviour. it is true that a few people become violent because of mental illness; they really cannot control their behviour. medication/therapy treatment can help. although most abusers may not be diagnosed with menatl illness, they are experiencing anger control problems which often requires professional help. most people who assault their partners are not violent outside the house. they do not hit their bosses or colleagues. they often aim their blows at parts of the body where bruises will not show.