Heard this from another airline crew........PITA = Pain In The Arse (passenger).
Mr. Pita was a regular passenger with a certain airline. His status was equivalent to that of a PPS (Priority Passenger Service) passenger in SIA. In this instance he flew business class. He wanted to be upgraded to first class and demanded the purser to do so. Since the purser serving him could not do the upgrading he summoned the chief purser to do so. When the chief purser explained to him why he couldn't upgrade him, Pita abused him saying he and the purser was "not worth a cent".
Pita started to pick fault with the crew regarding his meal,wines etc. He told them he knew the airline CEO and was going to complain against them. He warned them the CEO would sack the 2 crew who did not upgrade him.
Half way through the flight, the purser serving Pita could not take the abuse anymore. He f****** Pita up and threatened to get him beaten up after the flight. Guess what? Pita started to weep and apologised to the purser.
A few weeks later, the purser was shocked to see Pita's pictures in the obituary column of the newspaper.
Apparently Pita was killed in a car accident.