Don't go to work often enough. Three weeks of inactivity, standby and irritation. Followed by too much work, positioning up and down the country at all times of day and night. This goes on for a bit until you have developed the ability to fall asleep anywhere.
Deep sleep usually interupted by some cabin crew member with an understanding look on their face (I know how you feel), saying words to the effect of "this is where you get off".
Other crew member is either great or terrible. (Proberably just okay really but it depends whether you've been stuck with them for days or weeks on end. ie you've heard all their stories before and they've heard all of yours.) Actually I'm fortunate that everyone on our fleet is great. It's just you get tired of each other and want to go home after a bit.
Oh, and the roster changes every day without fail!
Still the best job in the world though.