Little Johnny is sitting in biology class. The teacher says that an interesting phenomenon in nature is that only humans stutter -- no other animal in the world does this. Suddenly, the little boy's hand shoots up. "Not correct, Miss!" he says. "Please explain, Johnny," replies the teacher. "Well, Miss, just the other day I was playing with my cat on the veranda. The neighbour's Rottweiler came around the corner, and my cat went 'ffffffffff! fffffffffff! ffffffffff!' " "But before he could say, 'F*ck Off!', the dog ate him."