Y'all are just pulling our legs aren't you trying to scare us before we go to sleep. If not, I would suggest seeing a psychiatrist or so. Again, there has never been serious proof of an encounter. Most of them can be explained by vivid dreams, synchronicity or a survival instinct or a combination of them - others by psychoactive effects of the environment, memory, imagination, drugs, fungi, alcohol and most likely a combination of them. It's been shown that mold growing on bread can induce these types of effects as well so check the expiration date on your food.
If you don't believe in God you can't believe in the here-after, spirits, the Devil etc. I'm personally still on the fence about the whole God thing but I have a hard time believing any of these 'experiences' were actual events.