I've made a few creepy comics told from a first person perspective because that makes it more scary, but this is something that actually happened to me last fall.
It didn't scare me enough to never go back, but it's a good creepy story. I could just have been a random guy sitting in the dark forest, but somehow that doesn't make it better in my opinion.
O
With the creek nearby, you probably missed the sound of that guy pissing in the bushes.