People often fear the supernatural for they are perceived as evil and have ill-intentions. Demons, spirits and devils are just a few off the list.
What many people do not know, is that humans are in fact the scariest. They are selfish creatures who only care about
Money...
Status...
Looks...
The thing about humans that makes that makes the supernatural seem much better in comparison is that humans hide their intentions behind a smile. What's worse is that they can hate you to the core but wear a smile in front of you for years.
In my eyes, Humans are the most terrifying out of all creatures...