It's a dark application, but we can use this technique to think about the costs and benefits for the school shooter trainings that so many school kids are now required to attend. 1/10
![](https://pbs.twimg.com/media/DzabwrWU8AACbHP.jpg)
It seems conservative, but let's suppose that only 1/4 of them attend school shooter trainings, and these trainings are only an hour in length. 2/10
So if only one student in four spends only one hour in training, school shooter trainings consume 25 student-lifetimes nationwide. 4/10
But notice that even if school shooter trainings were 100% effective, they would expend more life-hours than they preserve. 5/10
But there is no little or no evidence that these trainings prevent fatalities. 6/10
(photos of training materials from @CovingtonAHS) 7/10
![](https://pbs.twimg.com/media/DzahbUMUUAAIP5N.jpg)
![](https://pbs.twimg.com/media/Dzahhw0VsAE5nYd.jpg)
The kids saw the logical flaw right away: most shooters are students at the school and thus know the all-safe password!
*Password changed to protect secret word. 8/10
With large costs and questionable benefits, why, beyond administrative ass-covering, are we subjecting our students to this practice? 9/10