After a couple of firm No No corections this morning during a drill, my 15 month old lab started laying down after he was verbally corrected. What does this mean. The drill we were doing he had done a dozen times before this spring but for some reason he started refusing a right over all the way to the pile? he would lay down? He is CC. Should I have Nick Over Nick? Is he pushing me? This same dog i can handle out to 150 yards on cold blind. Are we going backwards?