Apparently not, they never had the good sense to bite Biden.
They are afraid of him, and cannot read his moods. They have all of the symptoms of a form of insanity. These are supposed to be pets, not attack dogs. Dogs like police animals, are trained well, but even they need to respect their owner/handler. Mr Biden, is a disgrace as a dog owner, Father, Brother, Husband, President and human being. Not to judge his soul, but his seems to be shading towards Gomorrah