I don't know where to start. My lab is out of his pen and we are working on sitting, staying, retrieving. He will listen to me once he runs around crazy for a min. However sometimes when i say come, he turns and runs towards me then turns around and runs away. This is the first dog i have trained and he is 3 yrs old. THe only thing i want him to do is retrieve. I am not following and specific training program.