When the federal government, state, county, education facility, deny your right to LIFE, by establishing laws which put you at the same risk, as a fetus, it is time to look at how to protect yourself and remain law abiding, if you choose. VA Tech would not allow weapons, which is very broad term, some have been defined by LE across the U.S. as baseball bats, vehicles etc.
A few items you can carry anywhere in the world, which are not weapons, pencils, mechanical pencils and pens, spray deodorant. The pens and pencils become knives, the spray deodorant and maybe hair spray become OC, since they contain alcohol, and an adhesives.
Your ability to survive, will be your desire to kill the bad guy.