I was going to post this in my dreams forum until I remembered that this incident wasn't a dream.
A friend of mine told me that he and his father went fishing in Baja, CA and they spent the night in a small hut-like room. He was still very young, elementary school age. He woke up and saw severed heads floating in a circle above the bed that he and his father shared. Of course, it terrified him and he thought he was dreaming. But he wasn't. He couldn't sleep the rest of the night.
The very odd thing was that later, his father died of a freak accident. He slipped and hit his head in the shower.