I can relate - when I was a CEGEP teacher our contract said 35.5 hours/week - but in reality that was only for a few weeks in the year. The rest of the time it was 50-60 - prep, marking, etc. which meant evenings and weekends.
E-mail - when I started we had office hours, and my office would be full. Once e-mail came in, no students, but lots of emails asking the same questions. I ended up having to state in class when I would and would not be checking student emails - i.e. after 9 PM, you will not get an answer until the next day, I check once a day on weekends, etc. Otherwise it was as if they thought I never slept or did anything, except sit at my home computer any time I was not at my work computer, waiting for them to email me!
Of course the College still expected us all to have office hours - they were great times to get a lot of work done, the office was so quiet. And for inquiring minds, I always checked my students' availability first day of class when I set my office hours, so there was always a time they could come. They just preferred email, they could email anytime instead of planning ahead.