[LuvablePsycho]

Another interesting thing about the undead is how they try to kill the people they once loved and cared about when they were still alive.

Like in Night of the Living Dead when the Cooper's daughter became a zombie and killed and ate her own mother and father.

Maybe when a person becomes dead they feel that they would be lost without their family or friends so they decide to pull them into death too? I mean after all they have already become dead so they might feel that it isn't so bad for their loved ones to join them in death too.

Now ghosts on the other hand, it seems like sometimes you have a ghost who refuses to do that sort of thing to a loved one and they might actually follow that person around looking after them and protecting them.

Like a ghostly mother who protects her still living child.