Well, when you get a 2-inch layer of ice and blizzard like conditions, it's difficult to drive. Plus, I'm from an area school, so if my town gets a lot of snow, it's cancelled because most of the students live here, or the other half live in a town 30 miles away.
At my school we had 2 mercury days because someone was playing with viles of mercury somewhere in school. The 2 days were JUST before spring break when all the tests happen (I have an A and B day block schedule, so I missed all 8 classes).