See the full article here: http://www.matific.com/us/en-us/blog/2016/02/11/why-you-should-scare-your-students/
The idea that scaring students will help create teachable moments is presented in this article. Psychologists suggest that scary stories are a great way of helping children deal with fear and negative emotions.
Maurice Sendak – beloved author of that gloriously monstrous romp Where The Wild Things Are – believed when he won the Caldecott Medal in 1964, saying, “It’s an awful fact of childhood. The fact of [a child’s] vulnerability to fear, anger, hate, frustration – all the emotions that are an ordinary part of their lives and that they can only perceive as dangerous, ungovernable forces. To master these forces, children turn to fantasy: that imaginary world where disturbing emotional situations are solved to their satisfaction.”