worst, I really think they treated you terribly. But now reading all this has made me much more supportive of the 'core hours' thing. Even though you said your beef doesn't apply to me, it actually does - I do work full time, but there are times (one afternoon a week) that I will not casually schedule items. It actually makes it hard for me to meet up (socially, though) with a friend who works part time, 50%: half a day at home and two days in, but one her days in is my half-day. I don't feel that just because I work full time that it should mean I am available at any time. I did fill out a whole flexible-working form, but my HoS said to do it informally. I've heard other Schools who did the same thing. At least here, I think it is the centre that is just a bit not up on the way academics work (my friend who does 50% had a lot of trouble trying to explain why she couldn't just 'log in' her hours at her desk computer, since even when she was on campus she was often in meetings elsewhere), and departments which are more sensible. But that does leave it to individual personalities to do it properly.
I think treatment of part-time academic staff overall is poor. One of the reasons I am staying full time is that if I were to, for example, go to 90% and only pull 90% of my salary, first of all, I really wouldn't want to work 'over' like I do now. But that would mean my working hours were cut to in fact 65-72% of what I do now! Yet my responsibilities would probably remain just about 100%. So I would come off far worse. Talking with people here has suggested it needs to be a 50-60% contract before you see a significant difference in workload. When I went on mat leave they actually tried to give first year - which takes a good 25% of my full time load - to someone on an 80% contract, without reducing any of her responsibilities! That is ridiculous. Things should not be like that.
Full time shouldn't be an infinite amount of hours, and part time shouldn't be basically full time hours until you get to a drastic reduction. But this is a whole academic culture thing, and I think it goes beyond the academics to the admin as well. I listened to the Director of Research of another school vent a few years ago - he had been called to a meeting of DoR's by the centre, as they were concerned that funding applications (and thus grant income) had dropped drastically in the last year. What was going on? All the DoR's answered that it was obvious: the top research-active staff across the whole Uni were involved in putting together the REF submission. Thus, they were not submitting grants. Thus grant applications dropped. The centre apparently just couldn't comprehend that when you take a group of people and give them a giant admin job above and beyond their normal work, that they will do less of what they did before.
I've heard higher ups in our school complain similarly but less specifically, that the centre 'sees academic labour as an infinite resource'.
I wonder if Athena Swan will help such things? But I also worry that is being held up as some kind of sword of fire, keeping people like worst from noting poor treatment, for fear of hurting the department's standing. I was conspicuously not included in the 'case studies' of how the department supported mat leave returners - they had to go back a decade to find the last mat leave returner, and pitched it around her current flexible working arrangements for her disabled child. I worry poor practice will be hidden instead of addressed.