“Sympathetic owners sometimes just retire their new purchases. In other cases, the pets take matters into their own paws. Peter Haney, a university administrator in Lethbridge, Alberta, twice found his Roomba in pieces after letting it clean while his flat-coated retrievers, Macleod and Tima, had the run of the house. ‘No one is talking,’ he says.” They’re only trying to save us from our future cybernetic overlords…From the bookmarks and by way of a friend, the WSJ broaches the thorny issue of the canine-robot divide. As I noted earlier, the Battle for 122nd St., 5D went to Berkeley, whose fearsome arsenal of dog hair apparently convinced my Roomba to give up hope.