They can do whatever they like when not wearing uniform, Facebook pages, private reunions, I don't care. But I'm sick and tired of this unprofessional behavior in front of the customers. I've seen plenty of this on both PMUA and PMCO, but - for what it's worth - far more on PMCO, with FAs whinging unashamedly in front of, and in conversation with, passengers about being merged with UA from the day it was announced. If Smíšek had had the first clue about how to make this merger work, he would have imposed a zero tolerance policy of such behavior. Don't they teach you anything at Princeton?