Psychologists describe the part of the mind which controls behavior as the “Executive Function” and there are few greater fears than its loss. Without a locus of control, no one can function adequately. While its loss is a common fear, this is almost always unjustified. When occurring, it is usually with those whose sense of who they are, their “sense of self,” is tied to control of their behavior including all of their psychological defenses. The loosening of their defensive pattern threatens the loss of their sense of self and can be experienced as “falling apart,” “having a breakdown,”or "going crazy." For example, a person may feel they are "going crazy" when crying for the first time in their life.