Lately you’ve had a bad gut feeling for no apparent reason. After thinking at home for a few days you decide to go on a walk, listen to music, and take time to yourself. You step out of your home and start strolling down a sidewalk through a park. It’s getting dark soon and you can’t help but feel a sinister presence looming on your back the whole trip. You turn around, full of anxiety, but nothing is there. Maybe it’s just your mind playing tricks on you?