I'm not a believer either, well at least not in the daytime, when it's dark I believe in anything A few years ago Britain was hit by a series of earthquakes, the first one I felt happened around 1 am, I was in bed reading and the bed started shaking, it didn't for a minute occur to me it was an earthquake, the thought that immediately entered my head was 'fuck I'm being possessed,' I flew out of bed (not literally) to land about six feet away because I was also worried about the under the bed monster eating my feet, went hammering on my son's bedroom who just lifted an eyebrow and said 'for god's sake mum it's an earthquake.'
I can relate to that. After I saw the exorcist for the first time I would always get freaked out when my bed would start to shake. But my bed was shaking because we lived close to train tracks. Still when you're only 10 years old and your bed starts shaking it freaks you out.