Have you ever seen someone become so angry that the are violent and they destroy property and remain in an out raged state of mind, then see the anger vanish as quickly as it arrived?

This behavior is not your every day normal angry episode. With normal anger you can track an escalation period before the high point of rage hits and you can just as easily track the Descalation of the anger as well.

With a person who has Intermittent Explosive Disorder. The anger just violently appears out of no where for no apparent reason or very little cause. It can last for minutes and or sometimes hours and it will vanish just as quickly as it came.
Leaving the person in a remorseful state of mind.
Or acting like nothing at all has happened and they go on with their normal routine.

This Disorder often leaves a path of property destruction or physical abuse in its pathway.
This at one time was considered a rare disorder and now it has become more common. It is not caused by drug or alcohol abuse and the cause of this disorder is undetermined at this point in time.

They have found that IED can be controlled with therapy and medications. There are several places on the Web that you can research IED. Some of the most helpful places that I found are:
http://www.mental-health-matters.com/disorders/dis_details.php?disID=54,
http://www.psychnet-uk.com/dsm_iv/intermittent_explosive_disorder.htm and,http://www.healthatoz.com/healthatoz/Atoz/ency/intermittent_explosive_disorder.jsp.

In the information found on Health A to Z. It states that:

Definition

Intermittent explosive disorder (IED) is a mental disturbance that is characterized by specific episodes of violent and aggressive behavior that may involve harm to others or destruction of property. Usually, these episodes follow minor incidents and are out of proportion to the trigger.

Description

The DSM-IV describes intermittent explosive disorder as one of several impulse-control disorders, including kleptomania (impulsive stealing), pathological gambling, and pyromania (setting fires). There must be several instances of failure to resist aggressive or violent behaviors that result in harm to others or destruction of property. Spurred by a minor incident, these acts are grossly out of proportion to the stressor. To be IED, these behaviors are not caused by another mental disorder (e.g. antisocial personality disorder, bipolar disorder, borderline personality disorder, or attention-deficit/hyperactivity disorder). These impulsive acts are not caused by substance abuse or medical condition (head trauma or Alzheimer's disease.

Many psychiatrists do not place intermittent explosive disorder into a separate clinical category but consider it a symptom of other psychiatric and mental disorders. Future acts of violence may escalate, despite how it is defined, and treatment is essential.

IED occurs more often in men. Women do experience it and have reported it as part of premenstrual syndrome (PMS).

It also states that : Causes

As with other impulse-control disorders, the cause of IED has not been determined.

Symptoms

IED causes violent behavior such as physical assault, destruction of property, and homicide or violent suicide. Violent, destructive behaviors often begin in childhood and escalate in adult life.

Out of all the information I have read on this subject I found this to be the most enlightening.
I believe that we are seeing more and more of this Disorder in children. This would explain the acts of violence that have been occurring all over America in our school systems by children.

............To Be Continued