@wizard:
I think the story meant it was "chosen" for its sociability not "culled". (You'd think journalists would have a better handle on vocabulary) Great story anyway.
They meant chosen. Jeff visited the litter many, many times as the litter was growing and Kaden had everything he was looking for in a working dog.
I know the breeder and saw the litter when they were about 11 weeks old. Of course Kaden was already in his new home by then. Jeff and Kaden live in my area so hopefully I'll actually get to meet them someday and watch Kaden work.