Was out to my dads today and my brother-in-law has his new yellow lab female there. She is right at thirteen week's old. He has her sitting, and staying fairly good, but he get's so frustrated, she wont bring a ball back to him. So I grabbed the ball took her away from the kid's running around, got her excited about the ball threw it about 15 feet, she bolted out got it brought it right back to me, repeated this two more time's, and I quit, brother-in-law wanted me to keep going, I told him that's enough for now, try it again in a couple hour's. Always quit on a good note. I think he was expecting instant result's with fetching. I warned him not to burn her out on fetching, take your time, dont get frutrated, and she will come along. It doe'snt happen over night.