DURHAM, N.H. (AP) — After outliving Booker T. Bones, their second service dog, Brenda and Brian Marquis still needed help with some of the more difficult parts of daily life. They found Robbie, a robot that rolls out of a hallway into their living room several times a day. “Do you want to exercise now? Please answer yes or no,” the caregiver robot asks 59-year-old Brian Marquis, who has been living with a traumatic brain injury since a 2012 car crash. “Yes,” he responds. Then he stands up as