When 51-year-old Japanese kindergarten teacher Atsuko Sato started seeing strange pictures of her eight-year-old Shiba Inu dog Kabosu popping up on the internet this past August, she was a little freaked out. “I was taken aback,” Sato, an elegant, brown-haired woman given to wide smiles, recalled. “It felt very strange to see her face there. It was a Kabosu that I didn’t know.” What Sato didn’t re