How do you add a sentence to make a scary story not scary?

Previously I had a dream, I keep running, keep running, in a dark and silent road, feel that I will fall to my knees at any time, an inexplicable fear accompanied by this feeling of powerlessness overwhelmingly, at this time, in front of the front suddenly sprang out of a figure ran toward me, I could not dodge, a hit in his arms, I panic a look up, but a long black inch hair in the back of the head, I was shocked, backed up in a hurry, I was shocked. I sat down with my legs weak, I saw his fisted hand still maintaining the movement of swinging his arm forward, I aimed to see his toes were rushing in my direction, and where there should have been a face, there was a pitch-black back of the head, I backed up with my hands supporting my body slowly, at that moment, this back of the head made a move that made me incredibly shocked and nauseous, it was slightly downward, a back of the head, making a move to look down at me, everything Let me tremble and despair, I dead stare at him, trying to get up, but fell again and again, I hands on the ground to make hard to move backward body, my arms strength a little bit lost, at this time he suddenly laughed: "Haha, look at you scared, I bring a head cover only".