I am working on obedience and retrieving with my 14 month old male yellow lab. It seems like all he wants to do is retrieve all day long. I'm guessing that as long as you throw the ball, he will run after it. But, he does not always bring it back. At times, he will run around and play with it for a minute or two and then bring it back. Since I can't control him, I don't try to correct him but just wait and then praise him a lot when he brings it back. Have I started him on a bad habit? I want a dog that will sit and stay when I tell him to (he minds most all of the time). I want a dog that will come when I tell him to come (we need to work on that one). I work with him about 5 times a week for 5 to 30 minutes sessions. Any suggestions from the experts here? Thanks.