The vet told us to squirt puppy with water when he bites. I've been doing that and it does work. Just I would need to be carrying the squirt bottle with me all the time because puppy is oo so active. I never had a dog that was a biter before. This lil pup can't sit still without biting on a toy or whatever he can get a hold of...

You did bring up something very important as to "who is in charge".. It obviously isn't me.. Maybe obedience school is the next step...