I'm a mortician. My most disturbing experience when I was preparing a child for a viewing. I randomly felt someone pull my hair, but I was alone. A couple minutes later, I heard a giggle, and the door slammed shut. All of my machines stopped, it was dead quiet. After I was done and the body was dressed, I felt a tap on my shoulder and warmth around my mid-side, approximately where a child would stand if they were hugging you.