Many people have reported their electronic equipment suffering from strange anomolies once they have set foot in a crop circle. Ranging from cell phones to cameras, there is a body of anecdotal evidence indicating that crop circles and electronics sometimes do not mix. It isn’t something I’ve experienced firsthand, but many others have, and most people I know have a story to tell about such incidents. (Although do be wary of the ‘I couldn’t get a phone signal in the circle’ story, as many people fail to remember that they are in the countryside and phone signals can be patchy). Researcher Simeon Hine believes Dark Energy may be somehow involved in such incidents.
His article can be found here