(Promoted from comments.)
You know, when Douglas Adams wrote that the primary school teachers of the Silastic Armorfiends of Striterax were armed as part of their job, it was supposed to be funny because it was ridiculous. Fast-forward to 2012 and ... people are actually advocating this thing. I don't even.
Eventually they realized that this was something they were going to have to sort out, and they passed a law decreeing that anyone who had to carry a weapon as part of his normal Silastic work (policemen, security guards, primary school teachers, etc.) had to spend at least forty-five minutes every day punching a sack of potatoes in order to work off his or her surplus aggression.