Guns in schools might be used in circumstances other than defense.  Having guns in the classroom will more than likely increase the chances of gun related violence in schools. It would increase the chance of gun related accidents; although only a very small chance there would previously have been no chance. It may well also increase the number of shootings; people who carry guns are 4.5 times more likely to be shot, [1] although there is no way of knowing if the effect would be the same in the classroom as on the street. Finally it is ignoring the possibility that those who are to carry guns for the school children’s protection may at some point turn the gun on their charges. Teaching can be a very frustrating job and the teacher may get very angry with individual students, allowing teachers to carry guns would greatly increase the risk of an unpremeditated shooting against on a schoolchild.  [1] Callaway, Ewen, ‘Carrying a gun increases risk of getting shot and killed’, NewScientist, 6 October 2009,