Again, schools are teaching kids to throw text books at criminals. If that criminal has to change mags with books flying at him/her it could buy enough time to save a few lives and/or take down the shooter. And how does this attempt effect you? You might have to buy a box of tissues and print out a picture of Obama so you can throw darts at it...
That is like bringing a knife to a gun fight my Gosh man listen to yourself, arm the Teachers or staff.