Also,
They reckon this is the source of most of the alien abduction stories - not being able to move, weird buzzing noises, shadowy figures, etc. Apparently, a lot of what people see is connected to whatever the big scare at the time is, so for many generations, it was witches choking you, then vampires, etc. For a good while recently, it was aliens.
( Colonel Boris "...a desperate Buzzfeed imitation...", Sat 25 Jul 2009, 18:15, Reply)