My friend who used to fly JFK-FRA on PIA when he was living in NYC has more or less corroborated all of the above (he once had to pay for his accomodations at FRA because of a "mechanical delay"). The one bit of information he added was that PIA once permitted a passeneger to smoke pot for the duration of the flight - my friend claims the lady (who was sitting next to him) was rolling the joints with her feet and offering some to him.