This dog may be voted "Most Popular Pup" at a Virginia high school after his photo appeared in the school yearbook. A.J. Schalk, 16, suffers from Type 1 diabetes and his service dog, Alpha, alerts him if his blood sugar is dangerously high or low. Alpha has been attending school with him for the past year and a half. The 3-year-old canine wasn't the happiest about having his photo taken in front of the giant yearbook camera, Schalk said, but his picture was priceless.