Pet Sematary: Any dead creature buried in the ancient Micmac burial ground comes back to life, just not quite the way you put it in. After losing his young son Gage, Louis buries his son in the graveyard. Sure enough, Gage comes back — and promptly murders his mother.
That's only one of ten reasons not to resurrect dead bodies. Link -via Gorilla Mask
Besides, there's always a reason to bring someone back from the dead - like True Love or MLT's.