He is on a variable schedule of reinforcement. I did reward him heavily in the video, but I do not keep food in my hands. Food is in a bait bag or in my pocket or on the counter or somewhere else. He normally just gets rewarded for the best or quickest response to a cue. When he is in an obedience trial he has to work consistently for about 10 minutes without any food being present anywhere in the ring.If there was no food involved do you think Droopy would still obey your commands?