I have seen it myself, my friends an co-workers tell me about it and
i can read in different forums about it...
"The cabin crew served the meal and then disappeared for the rest of the flight".
"I asked for a glass of water but the female cabin crew asked me to get it myself from the galley".
"I pressed the button for cabin crew but they just turned it off".
"I found the cabin crew in the galley talking about how bad it was to work for the airline".
"The cabin crew never smiled and you could not get eye contact".
Everyone can have a bad day.
And as a passenger do you sit for hours and maybe watch the crew to much...
But it seems to me that many people who work onboard a aircraft do not have
"fun" and maybe want to be somewhere else.
Maybe is it not PC to give to much of yourself and then get enemies by other crew members...(?)