These days too many people say they cold care less about something. If so how much less? Proper would be couldn’t care less. If they do not care at all.
My previous dog never ever barked in the 13 years I had her. She did have a voice but decided never to use it. It would have been nice if she had barked at strangers at the door or in the yard though. I still miss my silent dog.
Designated herder?