A lesser-known cousin of crop circles, pond circles are less elaborate but appear with equal suddenness and mysteriousness. It is believed (if you believe *them*) that the cause is a combined effect of frozen swamp gas, ball lightning and disturbed lone gunmen. Conspiracy theorists theorize a conspiracy, behind which are certain organizations too incompetent to pass an annual budget without shutting themselves down but somehow able to control a vast and unknowable universe of phenomena. Believe who you will; the truth is out there.
