> Rereading my last employment contract, the stipulation was I was paid assuming 40hrs/week, but the office expectation was 40 was a floor. 50-60 was more the norm. The whole salary exempt from overtime thing gets to be annoying quick.

That's only because if you refuse someone else will step in to take your place under those terms. Collective bargaining can be a powerful aid with things like that.

Don't work if you don't get paid.