Diplome is spot on.
I often, (but not always) get the feeling that some airline staff regard customers as a timewasting distraction.
Write to the airline's CEO and complain in the strongest possible terms.
If we Customers were so bad, the "Thick passenger comments " thread would be 4,000 pages long. It isn't - it is 44 pages long. For comparison, Mornington Crescent is 226 pages long.