The doctor said he'd never heard anything like it. Just a coincidence I guess. I don't think Mrs. Smart's scream would have carried 3 blocks and started the dogs 3 blocks away all barking, especially when the doctor looked checking out the other direction which is where the scream came from. He was waken up and heard the car race by 2:30, he dozed, then was waken up again by the scream and went outside to check it out.