Our dog used to do this when he was a puppy-- he looked just like a little crocodile!
A lot of it was about minimizing his excitement in these situations... moving slowly around him when he got excited and leaving a small drag line on him so that we could control him without grabbing him when he had a little 'wild thing' episode. On the occasions that he did snap, we pretty much treated it like puppy-biting-- just stood up and walked away.
A lot of it was about minimizing his excitement in these situations... moving slowly around him when he got excited and leaving a small drag line on him so that we could control him without grabbing him when he had a little 'wild thing' episode. On the occasions that he did snap, we pretty much treated it like puppy-biting-- just stood up and walked away.