In assessing a patient's substance use history, which behavioral pattern would most strongly suggest alcohol abuse?

The behavioral pattern most strongly suggesting alcohol abuse is legal troubles related to fights. When a patient engages in physical altercations or other legal issues, it often reflects a loss of control that is commonly associated with alcohol consumption. Individuals with alcohol abuse issues may have impaired judgment and increased aggression, which can lead to confrontations requiring legal intervention.

In the context of substance use, such behavioral manifestations indicate that the individual may be using alcohol in a manner that is disruptive to their life, potentially resulting in serious consequences such as arrests or criminal charges. This pattern highlights the potential severity of their substance use, marking it as a significant red flag for alcohol abuse.

Other options, while they can sometimes relate to substance use, do not specifically indicate alcohol abuse as clearly. Frequent travel may suggest an active lifestyle or job requirements, consistent job history implies stability, and excessive internet use might indicate other behavioral issues but does not explicitly pertain to alcohol consumption patterns. Therefore, legal troubles related to fights is the most indicative of alcohol-related problems.