When the man behind the wheel of the car you're riding in first learned how to drive in a Model T, you're bound to have some reservations. Back to that in a moment. Because the most amazing thing about Clarence Griffith is that, every week, he still drives to Baylor University Medical Center to volunteer at the unbelievable age of 105. “I keep trying to get them to let me retire, and they won’t do it," he said. "He's a rock star when it comes to volunteering," said Baylor chaplain Mike Davis.