I had these experiences as a kid; I remember certain things happening in school that were horrifying that I would see, certain things of violence or certain things of cruelty, but around that, something might happen afterwards to cause everyone to laugh, and that always blew me away.
In the real world, there's probably nothing more horrifying than racism. Living racism is a horrifying experience. And then, having to normalize it and internalize it.
In war, there is hardly a more horrifying example of the head-long plunge into reckless militarism than what Hillary Clinton led the way on in Libya.
In my own life, I think legends of supernatural, mythic things are really just a manifestation of the collective unconscious. So I don't really get freaked out. I mean certainly, you read about things people did to each other in the pursuit of some mystical or occult goal, and it's horrifying. But that's just human nature.
We need healthy forests if we want to protect our climate. As the climate changes, forests become more vulnerable to insect outbreaks, droughts and wildfires. Simultaneously, when our forests are destroyed, their carbon is released back into the atmosphere, further impacting climate change. It's a horrifying one-two punch.