Well, I feel better already. I'd thought about putting a muzzle on him, but the groomer had said she didn't think that was very good for a dog (to be forced to wear a muzzle to be forced in turn to do something it doesn't like). The thing is, once he had the muzzle on at the vet's he was just fine. It was almost as though he was thinking, "Well, there's nothing I can do, so I might as well let him do whatever he needs to." He was also good about having the muzzle put on him in the first place.

After I left the groomer's I felt a little puzzled and alone--I took him home, made him do "puppy pushups" (having him sit/lie down, for treats, of course). I wondered if he wasn't a little worse off than I'd thought, since the groomer had acted a bit shocked by him. The thing is, I would say he's a very good dog, but just a little rough around the edges. From what some of you have said, this behavior isn't so unusual after all.

I think I'll just call another place, tell them specifically what happened at this groomer's, and see what they think they can do. I think I'll wait a month or so, though--he really doesn't need a bath right now; I just thought I'd get all evidence of the shelter off of him.

Thanks so much!