A black cat named Jack is missing, and his distraught owner wants him back.Kathy Paulson, who describes herself as “a foster mom for cats” and helps find homes for any stray cats she finds, wants Jack back home not only because the missing feline is her favorite among the five she had at home. More importantly, says the former manager of PetSmart in Fremont and member of Happy Pet Owners in Manteca, Jack is “not just an ordinary cat but a therapy cat” that Paulson brings to private care homes to entertain the elderly residents.“He’s kind of special. At the old folks’ homes, he sits up like a dog and he waves his paws, so he’s not just your ordinary kitty.