Step on a Crack, Break Your Mother's Back

It's possible -- no one has proven that it's impossible, anyway -- that the universe is a vast booby trap, designed and constructed by a cosmic practical joker waiting for us to make a misstep so he can jump us while holding us responsible for our doom. It's possible that the universe is set up so that it's possible to kill a human being in such a way that it's impossible for them to go to