Not flexible. 12 hour shifts, 3 days a week sounds nice. But my boss would get away with scheduling people 5 days in a row if it fell over a weekend. Would constantly be asked to come into work because if there was a call out, the boss is clueless on how to do the job of the FOA. So, if you didn't go in to work to fill in, you would be screwed the next day as far as catching up on work.