First and foremost the vast majority of FAs do a great job or at least "acceptable." However, there are probably some FAs that go into the job for the wrong reasons. The uniqueness of going somewhere different everyday with constant changes in coworkers gets taken aback by clueless, often rude paxs, massive delays, and most flights near or completely full. Unlike most jobs there is not a supervisor on site watching behavior so it not easy to weed out these types of FAs.