What type of behavior might indicate a subject is mentally unstable?

Indications of emotional disturbance are often key indicators of a subject's mental instability. This can manifest in various ways, such as erratic mood swings, irrational behavior, anxiety, or expressions of overwhelming distress. These emotional signs can suggest that the individual is experiencing significant psychological distress that may impact their decisions and actions.

In contrast, a calm demeanor typically signals that a person is composed and not experiencing significant emotional turmoil. The presence of friends may provide social support and stability, making it less likely for someone to appear mentally unstable. Cooperative actions generally suggest compliance and rational engagement with their environment, which would not typically correlate with signs of mental instability.