It often feels like it - I certainly work around 50% above the hours I'm actually paid for. I'm not sure if this is called slavery or professionalism.
No, I accept that if you are required to be there, you should expect to be paid. But then if you are paid to be there, it's not unreasonable to make best use of the time.
G
"So long as they pretend to pay us, we'll continue to pretend to work" (saying, former USSR).