Which behavior could indicate the need for a psychological assessment in a commercial driver?

Suspicious behavior in a commercial driver can signal potential underlying psychological issues that may compromise their ability to operate a vehicle safely. Such behavior might include evasiveness, lack of eye contact, or actions that suggest a disconnect from reality or stress that could impair judgment. Given the responsibilities associated with driving commercially—such as safety on the roads, responsibility for the cargo, and the well-being of passengers and other road users—it's critical to evaluate any red flags that could pose safety risks.

In contrast, behaviors like consistent punctuality, high enthusiasm, and a friendly demeanor typically reflect positive traits that contribute to a professional work environment and effective job performance. These behaviors generally do not raise concerns about the driver's psychological well-being or capability to perform their duties safely.