I have a recurring nightmare. When I was younger, a snake would show up in my dream and I would wake up "AAAAAAA!" Later, it wouldn't be until the snake was about to bite. Later, it was when there were hundreds of snakes chasing me and just as one would sink its fangs into me. Now, I don't wake up until there are dozens of snakes hanging off of me by the fangs pumping their venom into me.