OK so some may of read about the dog I'm looking after and the small problem of not given the ball back when asked. It's not such a problem, as before because she does'nt get aggro inside with the balls anymore, I just leave her be, she gets bored and thats the end of it BUT I'm a little worried she's not getting enough exersize on avergae she gets a good 1/half to 2/half hour's a day with a far bit of running she's a rotwieler 3 years old female. This is a typical day Morning walk around 10am with running until she wants the ball in her mouth and will not drop it, around 40is min. afternoon walk around 4is for 30is min with running until the ball becomes her bone. Then evening walk around 30-40is min on lead around town. In my house she sleeps and doe'nt seem to be bothered it's not like she's chewing things up or misbehaving in anyway. The way I see as soon as she holds onto ball the walk stops unless I've got the time to get it back, but a assume she's tired enough if she decides to hold on to the damm thing. I only have her for 3 more weeks so not a huge problem and I'm sure her real owner never walks her as much so I can take a good guess she getting more exersize. Any thought's on that appriceated.