Following upon Sttraw Legend, here:—

        A baby boy was born to a young married couple. This, of course, was nothing unusual. What was a bit unusual was that the baby rarely if ever cried. He was an extremely quiet and seemingly contented child. When, by the age of two, he had not yet begun to talk, the couple took him to the pediatrician and expressed their concern. The pediatrician examined him thoroughly and pronounced him perfectly normal. He said, "Some children just don't start talking until later. I wouldn't worry about it."
        Another year passed. When he still hadn't spoken, the couple took him to a child psychologist. The psychologist gave him a battery of tests, and other than the fact that he would only respond to the psychiatrist' s verbal questions by nodding or shaking his head, the psychiatrist also pronounced him perfectly normal. In fact, the child seemed quite bright.
        More years passed, and the child still didn't speak. At the appropriate time, they enrolled him in school. He did quite well and got good grades. Straight B's, in fact. His teachers said that he got straight A's on his tests, but since he never participated actively in class discussions, the best overall grades they could give him were B's.
        The couple was mystified. Physiologically the boy was normal and several psychologists had declared him mentally healthy and quite intelligent. All through grade school and high school, he rarely got into mischief and never got into any serious trouble. He had lots of friends who liked him because he was friendly, helpful—and quiet. He seemed, almost, the ideal child. But he never spoke.
        One evening at the dinner table, the boy said, "These carrots taste kind of bitter."
        His parents dropped their forks simultaneously and stared at the boy, wide-eyed and amazed. When they had recovered from their shock, the father said, "You talked! You can talk! "
        The boy nodded.
        The mother asked, "Could you have talked all this time?"
        The boy nodded began.
        Then . . . why haven't you ever said anything?"
        "Well," said the boy, "everything was just fine until now."

Don Firth