What does a ghost say to another ghost?
*"Do you believe in people?" ;-) *I can't see you."
Yes, a ghost can be scared of aother ghost. Lets say a little girl was bullied by her parents, then they die the next day. The little girl would be afraid of her parents because she was whe she was alive, some ghosts don't know that they are dead. They just live their lives like they did when they were alive.