My younger dog (3yrs old) will sense me about to switch and he will start barking at me. It is the oddest thing (I did not train him to do that). But it helps me out tons!!

Now I got him as a puppy when my breakdown was happening. And one alter did not like him, so I think that is what he picks up on. But he barks no matter which alter is starting to come out (even the young ones who love dogs).

So now I wonder if anyone else has a dog like that?
Does anyone know if they train service dogs to do that for DID people?