I never thought about that OT,you are right,pretty dang powerful strain of BSE across that medicine line,cows watering in a creek,start pooting it up,along comes Mr catfish eats cattle droppins,gets infected with BSE,travels many miles up stream into canada,a canuckle head has some lines set,catches Mr Catfish has a lil fish fry and throws the bones and head into his grinder/mixer for a lil protein eh ?  ..........good luck