This a more complex subject than the author tongue and cheek emotes.
A very good friend of mine granddaughter was in the Sandy Hook shooting. She survived, her teacher didn't. The teacher shielded her students.
I recently caught up with the now woman and remarked to myself the gift of life her teacher gave her.
Some of the tactics have changed. The author is clearly be aware, nor is he current. I'll not detail them here, it would be inappropriate to give scumbags a heads up. Having been a Board of Education member during the Sandy Hook shooting in Connecticut and the husband of a Connecticut school superintendent I'm somewhat familiar with the subject.
Cheap throw away thinking on the author's part. Grin all you want.