I have a tennis ball addicted Daschund too. He is relentless. Je plays with his Penn tennis ball (never any other brand, they don't last) from the moment he wakes to when he burrows under our covers. If we go for a 2 mile walk, he will carry that tennis ball the entire 2 miles. If we don't throw or kick the ball for him, he will throw it himself by biting the felt with the edge of his teeth so it dangles out of his mouth. He then spins around like a shot putter and releases. He can easily throw it 15 feet or more and occassionally hits us while watching TV. I would never dream of taking his ball away. It is his obsession, his true love...his everything. I am second.