I'm a teacher so would like to defend the profession a little. Sure, you get a couple of teachers who do the minimum but they tend not to last as they are torn to shreds by the kids and life becomes thoroughly hellish. Once you lose your reputation, every lesson is painful and even the most ambivalent teacher comes to their wit's end.
I enjoyy job most days but it is tiring and demanding, again like most jobs, but there is no hiding place in a classroom. When my eldest was born, i was shattered and the kids could smell it. Other new dads i knew told me that they were falling asleep at work and colleagues were helping them out. In a classroom you are on your own trying to entertain 30 people who would rather be anywhere else.
Back to the snow. 3 years ago we didn't close early and the last kid was picked up at 9pm, despite being 14 his mum said
she didn't want him to come home on his own in dangerous conditions. The teacher that stayed did not get home til midnight - no extra pay or even a thank u, just a mother who claimed she had been harassed.
Anyway. I am rambling now. If teaching was easy everyone would do it.