I have a six month cavoodle puppy who requires me to take him outside first thing in the morning to go to the bathroom; during the week this isn't a problem, however on weekends when I want to sleep in he leaves me presents in the lounge room.
He has access to a dog door that he uses the rest of the day to come and go as he pleases.
He is rewarded for going to the bathroom outside and sent outside with the door locked when he does it inside. He knows he's done something wrong, how can I get him to use the door in the morning???