Scary: School staff with guns in school

A teacher takes out a gun and shoots at a suspected shooter but there are kids who could get hit.  Scary.
This whole concept scares the crap out of me and I teach.  I imagine kids getting shot much more than a bad guy with a gun gets shot.

http://www.thestar.com/news/world/2013/07/30/arkansas_school_arming_teachers_with_concealed_hand_guns.html