"They scare me more than any other fictional creature out there because they break all the rules. Werewolves and vampires and mummies and giant sharks, you have to go look for them. My attitude is if you go looking for them, no sympathy. But zombies come to you. Zombies don't act like a predator; they act like a virus, and that is the core of my terror. A predator is intelligent by nature, and knows not to overhunt its feeding ground. A virus will just continue to spread, infect and consume, no matter what happens. It's the mindlessness behind it."