I would really appreciate some advice. Our 4 month old pup has a 2-3 hour period every night where she is very bitey. It's too early for her to go to bed and enrichment things don't really distract her, although they help to keep our hands safe. Our main challenge is she jumps on the couch where she isn't allowed and bites whoever is sitting there. We calmly remove her but usually get bitten in the process. The only thing that stops this is sitting in the kitchen with her. Is there anything I could try to break this habit?? In all other areas she is lovely, and she hardly ever does this at any other time.