" Why are there spirits who want to harm the living? Why do they want to cause us pain and suffering? Why are there spirits who seek to drive us crazy with malicious, taunting behavior? The answers to these questions have huge implications on the paranormal because proving that these evil entities exist shows that our identities cross over with us after death. If a person was a bully who took sick pleasure in hurting others in life and continues to do so in death, then that shows intelligence and personality exists in the afterlife. "

― Zak Bagans , Dark World: Into the Shadows with the Lead Investigator of The Ghost Adventures Crew