Dog has somehow turned on us. No idea why, but will now growl and snap, have been bitten several times.

We’ve taken him to the vet who says he is the picture of health. he’s just a teenager who wants to assert his authority, or something. Will have to get him fixed and then take him to a local place where there’s supposedly a good behavioral guy.

Had quite a row with him tonight, snapping and snarling, and I frankly have no idea what to do. Kills me, I love this dog- but I’m not having a biting animal in my house.