Sadie’s endurance has really grown with her fetch skills. We started out 3 weeks ago with short games so as not to wear her out too fast. Now she is toning up, able to last longer, and can FLY across the yard. Sadie knows the ball is MINE and not hers. She might still try to grab it, but I calmly step on the ball until she backs up, sits, and looks at me. Sometimes I make her hold a sit for longer, just to build some self control. This is an excellent leadership exercise to practice that adds lots of structure to fun! Good girl Sadie, so proud of you!