In what respects does mad cow disease drive us mad? (bovine spongiform encephalopathy) There were these two cowS, chatting over the fence between their fields The first cow said, I tell you, this mad-cow-disease is really pretty scary. They say it is spreading fast; I heard it hit some cows down on the johnson Farm。 The other cow replies, " I ain't worried, it don't affect us ducksIn what respects does mad cow disease drive us mad? (bovine spongiform encephalopathy) There were these two cows, chatting over the fence between their fields. The first cow said, "I tell you, this mad-cow-disease is really pretty scary. They say it is spreading fast; I heard it hit some cows down on the Johnson Farm." The other cow replies, "I ain't worried, it don't affect us ducks