What is the meaning in a dream of shears

I was at my former residence and there was a big crowd of people on the front lawn and I was part of the crowd. I looked over my right shoulder and I saw my son on his knees and his face was bloody around the area around his nose and mouth. There was a guy who was standing in front of him, punching him in the face and he was about to hit him one more time, when I ran over carrying a pair of pruning shears. I put them up to the man's face and I said, if you hit him again, I will kill you and he said, you'll kill me and I said, yes, I will kill you. He looked like my former neighbor only he had short cropped black hair and his face was rounder. He backed away from my son and went into the house, he looked like he was going to scream. When I turned to look at my son, the blood from his face was gone, but he looked defeated and he was crying, I felt helpless.

Attack by Scissors & shears

I thought I woke up and my deceased grandmother was sitting at the edge of the bed with my old cat. My father came in and said "don't worry I know she's not real" and left the room. My grandmother was playing with my cat and while the cat was in her lap on its back, she grabbed a pair of shears off my desk and broke the cats jaw off with it. Then she became a demonic shadow and I kept running from her.