Passenger: Flight Attendant Started Fray - WSJ.com
According to this link, "the rest of the story is" that this FA copped an attitude, as witnessed by at least one passenger other than the one from Pittsburgh who seemed to be up and about when she should not have been.
In light of additional information (of what quality, I know not) I considered commenting upon the knee jerk response in re passengers, rude and otherwise, by some of the posts in this thread.
But I won't bother. It is quite possible that this gent had been considering leaving his job for some time, and this particular day it all came to a head ... if the linked news report is close to accurate, the decision to quit occurred at some point in the air, with consideration of going out with a bang given adequte time to ferment within his mind.
So long, Mr Slater, best of luck in your future endeavors.