So much that anger can cause. It is true that an angry man is no different from an insane person.

they do not think before they act, they act before thinking

At that point, their eyes are clear when the deed has been done and there has been damage everywhere. No one is an exception when it comes to anger because we are all humans and we would always be met with situations that infuriate us, wanting us to react immediately, but we must be calm so it doesn't get the best of us.