Long story short, my dog (2 year old, mix breed, female) used to be pretty good at fetching. My friend’s dog stays with us sometimes, and he isn’t so good at it. When he fetches he never brings the toy back. While trying to correct his fetching, my dog thinks now that the point is to run, grab the ball, then drop it. She even acts like she’ll get in trouble if she brings it back. How on earth do I handle this? I’ve successfully trained many dogs, but I’m stumped on this one. Any advice would be greatly appreciated!