Final answer:
When dealing with disruptive passengers, the best approach is to document the incident and report it to the proper authorities instead of confronting the passenger or involving others.
Step-by-step explanation:
If unsuccessful when dealing with disruptive passengers (PAX), the most appropriate action to take would be to document the incident and report it to the appropriate authorities. It is crucial for the safety and well-being of all passengers and crew on board that situations involving disruptive individuals are handled professionally and according to established protocols. Rather than escalating the situation by involving other passengers, ignoring the behavior, or directly confronting the passenger and demanding compliance, documenting and reporting ensure that proper procedures are followed and the matter is handled by those with the authority and expertise to resolve it safely and effectively.