>Some schools don't allow other students to take over the campus and prevent other paying students from access or attending class.

People hanging out on lawns don't prevent anyone from attending class. The encampments have been, to the best of my knowledge, entirely peaceful. Certainly the one at Columbia has been.

You can disagree with the protestors. You can think they're trespassing or that they're being too disruptive. But you don't get to lie on my watch.