Dexter was a nippy and very energetic fellow as a puppy. When Dexter was nipping, and I would do the loud shriek and take my hand away and immediately give a toy to chew on. Then say "good boy," always positive stuff. You want to teach what you want them to learn. Keep commands short and simple, they do not know the entire English language.
If I did not have a toy, I would do the loud shriek and turn my head away to ignore. This works wonders because they now have no one to play with.
Keep playtime short, puppies sleep a lot........ He is probably tired of being picked up and just or plain tired. The holidays are stressful and little children are loud. Having a Hav is just like having a new baby in the house, that soon turns to a crazy toddler.
As for humping, Dexter did this too especially to a certain toy, that I took away. I think this behavior is just inbreed into all animals. Take away the stimulus that is causing the behavior and replace with a good play or toy. Praise all independent playing behavior.
The children have to understand that the Hav is not a toy that they can play with whenever. Dogs have moods and get tired just like you and me and we can get cranky when we are tired.
Tone down the environment with some quiet time, praise all good behavior.
And welcome to new way of life, but you...... Congratulations, you now have a young baby and your life will be busy for the next 2 years.
Dexter & Jack
"One Hav is NOT enough to enjoy the RLH skills!"