During an experimental operation an operating team removes the almost all of the left half of a man's brain and asks him to count to ten. The man says "two, four, six, eight, ten". They put it back in, take out a similar amount of right half and ask him to count again and he says, "One, three, five , seven , nine".
Then they decide to remove almost all of both halves at once. Again they ask him to count to ten. The man says "I'm really good at counting to ten. I love numbers and I have the best numbers, no-one has better numbers than I do. My teacher, who was one of the brightest teachers, told me that I'm the best counter she'd ever seen."
Dave