The Mendocino County Environmental Health Department is calling for staff retraining at a Burger King franchise after a razor blade was found in a burger. A few weeks ago, Yolanda Orozco of Willits says she took a small bite, checked for onions and found a single-edge blade between the meat and the cheese.  Police tell "KXTV" they assumed the call was a hoax, but they found other razor blades in the kitchen, some above the burger warming trays, which employees said were used for cleaning purposes.