Commercial Fixed Wing
Flight Attendant Current
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Passenger Misconduct
General None Reported / Taken
Human Factors
While completing an emergency exit row check (after briefing) some passengers alerted me to a male passenger who arbitrarily moved to the empty exit row seat. I asked the passenger what his original seat assignment was. He replied XXB. I requested he return to his original seat. Passenger complied. During the beverage service; at row XXABC; I noticed the B seat was not occupied. I finished service; and checked the lavatories. The lavatories were unoccupied. I looked throughout the cabin for passenger XXB. He was once again sleeping in the empty economy section. I requested the passenger for the second time to return to his seat. Noncompliance. I then went to the forward galley for assistance. [The Purser] proceeded to speak with the passenger. After a long discussion; the passenger returned to XXB. A brief time later XXB aggressively approached me in the rear galley. Pointing his finger in my face; he demanded my name; my crew member's names; the Captain's name; 'everyone's name working the flight;' The passenger had what appeared to be alcohol on his breath. I once again; for the third time during the flight requested he return to his seat. His aggressiveness startled and alarmed me. I was offered official assistance; in wake of the aggressive actions of passengers against airline personnel.
Flight Attendant reported noncompliance with an apparently intoxicated passenger.