You do have a “people problem”, but that “people problem” has now caused a dog problem. It sounds like the pup is bored and wanting to play, but hasn’t been taught the social niceties of the “human world”. Retrievers are very mouthy in general because that’s what they’re bred for; picking up and carrying things. But there are actually several things you can do to help.
First things first: If she comes at you and bites down on your arm, yell out, “Ow!”, in a loud and high pitched voice. As hard as it might be to do, try not to pull your arm back as this may trigger the tugging instinct. Even at six months old, she can be taught bite inhibition. It’s not too late!! Yelling out in a high pitched, loud voice may startle her into letting go. After all, her goal is not to hurt you, but to play and get some attention. Think of puppies when they play. When one yells in pain, the other usually lets go. That’s our goal here. If she does let go, offer her a toy that the two of you can interact with: a rope for tug, a squeaker for catching, a ball for chasing. Make sure, when you are with her, you have a toy that she likes with you at all times. Because once she lets go, you want to say, “Good girl!” and give her the toy immediately and then a bit of affection for doing the right thing. Most retrievers have high drives and love a game of fetch.
If the yelling doesn’t work, you can yell “Aaaanntt” and push your arm firmly into her mouth. This losens her grib by widening her jaws and most dogs don’t like how it feels. As soon as she releases you, say “Good girl” and offer the toy and your time.
If neither of the above works, you may have to try a bit of nose pressure. When she bites down yell “Ow!” and then place your hand (thumb on one side and index finger on the other) over her nose so that the meaty part between your thumb and finger are applying pressure to the top of her nose. You want to place it about a quarter of the way down her nose. Then squeeze your index finger and thumb together as if you’re trying to make them touch through her nose. You’ll have to supply a decent amount of pressure for this to work, but you don’t r ally want to harm her. The top of a dog’s nose is VERY sensitive and a. Other dog will bite a pup here with some force, when the pup has gotten out of hand. You want to mimick a mother’s technique, sans the teeth. Once she releases you,give her the toy and affection. She may yell when you do this, but I promise you are only causing a bit of discomfort and no large amount of pain.
Lastly, if all else fails you’ll have to become a bit more aggressive in your tactics. -sigh- Ehen she bites you, place your thumb behind her upper canine by the same means as applying pressure to the top of the nose, but apply no pressure. Instead, run your thumb down to her upper lip and push it into her mouth a bit. This will cause her to bite down on her own lip (we all nonhow horrible this feels!) and in most cases, she’ll let go of you almost immediately. Give you, “Good girl” and affection immediately. And bonus, she’ll get to experience her own bite strength, which promotes bite inhibition.
I wish you two a lot of luck. If you have any questions about technique, I’d be happy to send you videos. I’m a Canine Behaviorist and have worked with dogs for over 30 years. Just email me at: tishtish1975@yahoo.com
I would first and foremost make an appointment with the vet to make sure she is healthy. It may be the stress of the situation (you not being there for a bit) and will take time to get things back to the way they were. I would also ask my family who were watching her if anything happened while you were away. Hope everything is ok.