Is a mentally ill person a threat to his environment?

Every man can potentially be a threat to his environment. It also happens that the mentally ill are a danger. In the state of extreme agitation the mentally ill may commit violent acts which might result in hurting other people. It is also possible for a person under intense delusions to take action to eliminate the alleged threat or to retaliate against his oppressors. Keep in mind that it is fear which is the primary mechanism leading to the aggression of a mentally ill person. The majority of potentially dangerous situations can be appeased by full understanding and hostility-free attitude towards such a person.
Statistically, the aggression of the mentally ill is a small percentage of aggressive behaviour occurring in the entire population.