The Bué spring or source of the imbeciles springs from a small aedicula located in a grove. The Templars ran a hospital in this place. The people of Pichange are sometimes called "imbeciles". Indeed, there is a historical explanation for this nickname... water so cold that it made people fools! Legend has it that a distant ancestor diverted the troops of the terrible Gallas by playing the simpleton, thus saving the village from being sacked.