 In his autobiography, "Gifted Hands", Carson recounted that exams for a Yale psychology course he took his junior year, "Perceptions 301", were inexplicably burned, forcing students to retake the exam.Carson said other students walked out in protest when they discovered the retest was significantly harder than the original examination, but he alone finished the test.On doing so, Carson said he was congratulated by the course instructor who told him the retest was a hoax intended to find "the most honest student in the class".