Lucy used to bite a lot when she was a puppy, we had a puppy gate put up in the kitchen so when she was naughty she was put in there and ignored. We live very close to the lady who owns her half brother who is a similar age, just letting them play together gave her some boundaries to work out that biting hurts! In the end she grew out of it, it seemed as if one day she was biting and the next day she stopped!!
