Then you will want to read these short stories:

(Read in order)
1. Footsteps (http://www.reddit.com/r/nosleep/comments/k8ktr/footsteps/)
2. Balloons (http://www.reddit.com/r/nosleep/comments/kcl8q/balloons/)
3. Boxes (http://www.reddit.com/r/nosleep/comments/kg0jf/boxes/)
4. Maps (http://www.reddit.com/r/nosleep/comments/kl1cd/maps/)
5. Screens (http://www.reddit.com/r/nosleep/comments/krdm0/screens/)
6. Friends (http://www.reddit.com/r/nosleep/comments/kyshm/friends/)

Prepare to get chills down your spine.

This guy needs to write a book.