Haha, I enjoyed the Samara solution. Of course, the only problem with lumping Michael Myers and Jason Voorhees into the same sort of category is that through the series, they really blurred the limitations of what Jason was able to do: ghosting in and out seems to be one of his abilities (ala the beginning of Jason Goes to Hell). It seems to me that even if you ran into an open field, he'd somehow manage to be RIGHT BEHIND YOU as you turn around.
It doesn't make sense, but it would still probably happen. Haha.