I found this interesting:

Nightmares of pure terror may be expressed in dreams of gory deaths and graveyard ghouls, and even cannibalism. The author Gustav Flaubert dreamt of a bloody orgy on which he was the main dish, The typical prisoner nightmare, he could neither shout nor move.
http://www.meaningofdreams.org/Bad_D...Nightmares.htm

Good to know I'm not alone.