if a person is experiencing personal distress, such as unable to get to work or eat regular meals, they may recognise that this is undesirable and may feel distressed and seek help. on the other hand, the individual may be quite content with the situation and are unaware that they are not coping- it is others who judge behaviours as abnormal. e.g. some schizophrenics are potentially dangerous as in the case of Peter Sutcliffe, the Yorkshire Ripper