Asking people to sign a waiver of responsibility for something a court may deem duty of care is not a strategy that works therefore heads cannot ask for parents to not sue if kids are "harmed" during snow days.
I place a lot of value on my job. What I complained about is the now automatic default in the education system in this country that every passing grade is a relfection of a dedicated student who has earned a valuable qualification, and every failure is an indication of failed teaching.
Teachers are supposed to educate and prepare children for future life. Because failure is now deemed the teachers fault, they are pressured into essentially rigging the results to avoid failure at all costs. Thus the kids can do bascially nothing, yet still achieve a passing grade. They are rewarded for doing no work. How, exactly, is that preparing them for life after school.
Working hours. I arrive at 8:30 (as a sixth form, we are somewhat later starting that the industry norm). I teach lessons continually until 16:30, and spend all of my lunch break doing student tracking data (everyday; praise be that I don't have to do playground duty or any of that). I then do an average of 2 hours marking/prep every evening. That's 10 hours a day for five days of the week. I also do examining work to keep in touch with developments and provide my students a better experience. I do this twice a year, but it works on average to being 3 hours for every weekend across the year. So, that's a 53 hour week, every week of term. That doens't include parents evenings, open evenings, or student disciplinary pannels we have to attend.
Then we get into non-term time. In non-term time, the work does not stop. An absence of lessons has little impact on the workload. Every lesson plan and resource must be reviewed, the department must prepare a self-review for Ofsted, student tracking data must be turned into performance information for governors and parents. References for University must be written (this year I had to do that for just under 100 students - all with a personally tailored reference).
Holidays are better than the private sector, I will acknowledge that; but not as good as the term vs non-term time would suggest. The trade-off is lower pay for the private sector equivalent.
Pension - guarenteed, yes; generous, no (not the "golden pensions" of the public sector, they're only for peole far higher than us)
Job for life? No, just been a round of redundencies because of a drop in the birth rate. Rural schools are closing and the students will be absorbed into local schools with no increase in staffing there.
Pay - starting salary for an "unqualified" police officer may have just been reduced, but even in its reduced form it is still more than that of a qualified teacher - a job that required a degree and postgraduate qualification and all the debt that now entails. Whilst teachers don't put their lives on the line, there are routine assaults and stabbings by kids and parents. It isn't as safe as working in a call centre (for instance).
No work no pay - applies to supply teachers (a growing portion of the sector).
Finally - Teachers don't close the schools; other people do. If your local supermarket was shut, you wouldn't blame the check-out staff