[T]he most enlightening moments are driven by his honesty, his sense of humor, and his willingness to constantly challenge his ingrained assumptions… Hilarity, and quite a bit of learning, ensue…In the GUINEA PIG DIARIES, he once again achieves a rare literary balance––an intellectual study of human behavior that will make readers laugh out loud or, in the more daring cases, inspire them to try one of these experiments for themselves.