[quark]

Given the influence of public schools on our nation, it sounds to me more like a public service than vandalism.

Amen. Unless it was the work of the leftist NEA/AFT "educrats" attempting to keep the students trapped inside...

[GovernmentShrinker]

Nah, the classrooms were all empty when they were sealed. This was the work of The Forces of Good. And see OXEN's post -- the practice is spreading!