I've got a cool meat restaurant nearby. Suddenly their french fries become burned, impossible to eat. I first tried to tell about this to the cook, but he was unable to fix them. Then I told about this to the manager. Since the manager was unable to understand the low quality of their french fries, I bought him fries from Mc Donald's in front and invited him to compare. Apparently it worked, because today their french fries are normal again. Do you think it was cook's fault, or potato supplier's fault? I can't believe a cook unable to cook fries properly may exist.