Conferences, Year 2

Date Zero has been rescheduled for Saturday night. I really feel like a snob when I say this, but I am not sure about dating someone whose work schedule changes. Is that terribly snooty?
Yesterday was the Very Long Day of teaching, the first day of parent-teacher conferences. It happens twice a year. I hate it. I absolutely loathe it. There are not strong enough words to convey my feelings of animosity toward it. I can't think of another career where one is expected to 1) work a 12 hour day, twice a year, for free, or 2) open oneself up for scrutiny by people who have no idea about the daily workings of the job.
Yes, parents need to know how their kids are doing. But parents don't see conferences as an opportunity to find out how their children are doing. Nor do they respect me enough to just sit and listen and take my word for it about how their children are doing. Parents look at conferences as an opportunity to tell me what they think about how I am doing my job. I am a captive audience, for 20 minutes (if they are polite enough to stay within their time zone, and IF they show up on time, which is a big IF) and I find that they are less interested in how their child is coming along in their education than how they can most effectively use that 20 minutes to badger me about my discipline/make up work/testing policies.
Anyway, after today it will be over until the 3rd semester. Really, it's enough to make me think about quitting teaching every time I go through it. Maybe after I have been teaching a few more years, it won't bother me so much.