I figured I would use Parker's POV. Mr. Tacular told me spiders. I pushed for more and he told me snakes. Thanks, that was very useful Mr. Tacular - I mean Indiana Jones. So I tried to get in the head of a man and figure out what I find creepy that a man would find creepy. What I came up with was the absolute awfulness that humans can do that go beyond just normal evil. It would be the things sociopaths do for fun, psychopaths do because they don't understand it's wrong, and the things that normal people just can't think could/should be possible.