I don't believe in any of the following things:

Telepathy, Telekinetics/Psychokinesis, the Face on Mars, Lost continents (Atlantis, Mu etc.), Kirilian photography, Orgone energy, Spoon bending, Ghosts / Poltergeists, Angels, Satan, Visiting Extraterrestrials, Sin and Damnation, most Conspiracy theories, Communication with Plants, Geomancy, Dowsing, the Easter Bunny, Reflexology, Reading of Palms and Tea leaves, UFOs (including abductions), a living Elvis, Wicca, Parallel Universes, Vampires, Clairvoyance/ESP, Divination, Crystal energy, the Dogma of all Religions, Numerology, the Hollow Earth, OBEs (Out of body experiences), Doppelgangers, Pyramid power, Reaganomics, Channeling, the Age of Aquarius, (supernatural) Witchcraft, Divine Prophets, Monotheism, Polytheism, Reincarnation, Pleiadians, Elves, the Paranormal, Astrology, Time travel, Creationism, Leprechauns, Psychics / Psychic energy / Psychic everything, Remote Viewing, Tarot, Demonic possession, Psi Balls, Faith Healers, Necromancy / Sorcery, Palm reading, Feng-Shui, Gods and Goddesses, other Supernatural Beings, the Lock Ness Monster, Santa Claus, Republicanism, Psionic Shielding, Hallowed Ground, Superstitions, Bigfoot / Sasquatch / Yeti, Visions of the Virgin Mary, Miracles, Time Travel, Magicke & the Occult, Past lives, (supernatural) Saints, Destiny, Super-Ionized Water, Levitating monks, Trickle-down economics, the Undead, imminent Doomsday, the second coming of Christ, the Level Beyond Human, Chakras, Eternal Souls, Ouija boards, Astral Projection, the Harmonic Convergence, and whatever the hell it is the Rosicrucians believe in!!

I do believe that no rational explanation exists for every Crop Circle...