Our dog Murphy is obsessed with playing fetch with a plastic ball. He thinks about it all the time. How do I know? Because when I come home, sometimes several balls are lined up right inside the garage door, waiting for me to come in. Or, lined up in front of my chair where I watch TV. Or, best yet, sometimes I’ll come out of the bathroom and see the balls lined up right outside the bathroom door. The point being: He loves to play fet...
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