:wink: I have read somewhere that when a male human grabs the penis of a non-human male anything, eyebrows raise suddenly all over the country and men in white suits rush to the scene. Bulls generally would be sampled at slaughter and the meat and all tissues are held for 14 - 24 hours until the test result is given. Since the animal has been slaughtered, a sample of brain and spinal fluid or tissue may be mixed into the homogenate to quantify the potential prion count. I know of one person who actually tried to insert the tube into the bull, and actually lived to tell about it. He did not succeed by the way. Ron.