I remember I was on board a flight to BEY, it was one of my last ones as I was leaving to go 'the worlds favourite'. Anyway, the aircraft was late departing and of course, apologised profusely and assured the pax that we would do our very best to make up time/make the flight as enjoyable as possible. With that, he told me that he hoped the airline would go bust. I didn't dignify that comment with a response, it was downright rude and uncalled for!
I recently worked for a call centre for an airline and one can imagine the abuse an employee would receive from irate pax