From what I've heard, this is kind of a common problem. When at home, it's pretty easy to have Bella stop. However, at the park it's harder because other people are willing to throw the ball for her. I'm worried that as the heat begins here, if Bella can't learn to stop chasing the ball, we'll have to keep park excursions short so she doesn't overheat. My other concern is that she doesn't play with the other dogs as much anymore because she's so obsessed with catching balls. When we get to the park, she brings a ball to me. If I don't throw it, she'll grab the ball again and drop it in front of someone else. If they don't throw it, she'll try another person....and another and another until she finds someone to play with. I've done the whole 'drop it' and 'leave it' thing...but it still doesn't prevent her from eventually finding someone to throw. I want her to be at the park getting socialized with other dogs, not people. Is there something I'm not doing right or something else I can try to get her mind off the ball short of not letting her go to the park or taking her out after a short time? I know I can't force her to play with other dogs, but I don't want her to keep getting ball after ball and forget to get drinks or refuse water because someone's got the ball for her.