Duece, almost 6 months has started jumping on the couch and bed and a couple of times has put feet on counter when he wants attention. He knows he is not allowed on the bed and only on the couch when we say. When he jumps on furniture he ignores my "off" comand and when I go to physically make him get off he bites at me. When this happens I make my ah ah sound and then ignore him but so far not really working. He just started doing this a couple of weeks ago. We do obediance daily, he has plenty of exercise, and attention, he waits for commands to eat, walk out of room (almost always), front door so I work on leadership alot. I was wondering if maybe he is testing us? How should I handle the not obeying off command and biting at me? He has also a couple of times tried to take treats out of my hand when I first get them out of bag. Thanks for any help.