unions

A step in the right direction, but not nearly good enough. They should be paid for all the time they are required to follow instructions by their employer - basically from the second they leave the locker room in their uniform, right until they dress back into their private clothes after finishing work.

That's how it worked when I was working in automotive industry way back when (the clock in/clock out terminal was right next to the locker room door), and that's how it should work for flight attendants, pilots and everyone else too. Everything else is labor theft IMHO.