| Never tolerate her mouth on your for any reason. There is no excuse for this behavior, even if she doesn't seem to have any ill intent.
There are a number of ways to deal with nipping, but this is my method:
I carry a small bottle of bitter apple in my pocket. When I feel teeth, I take out the bottle, calmly open the dog's mouth and squirt it in there. (Don't squirt them in the face, it can irritate their eyes). It's important that you not be upset with her. Think of this as a natural consequence of her actions, like getting poked by thorns if you stick your nose in a rose bush. :)
I don't use "no bite" because there is never a time when it's okay to bite. Also, If dogs do this when they're all wound up playing, sometimes grabbing the muzzle and holding it closed just gets them more worked up because it's like you're teasing or rough-housing with them. It's hard to say because I don't know the exact situation, but holding her by the scruff until she settles down may actually be encouraging the behavior because she's getting your attention and touch, even if it's kind of negative.  |