No, you don't. All you have then is a bunch of people milling around campus who haven't got the word.
so what, you are safer outside then you are trapped in a room in a building where the killer has chained the doors shut. I’d rather be milling around campus, where I can run for my life in any direction, then locked in a room.
No, you have people out of harm's way instead of being massed in classrooms like sitting ducks.
One of the smartest guys in all this was the professor who told his students to jump out the second floor windows. They may be bruised, but they're alive.