The greatest athlete I ever knew was something of a diva. She was barely coachable. She would frequently pretend not to hear you and go off to do her own thing. She was incredibly fast and stronger than she looked, and she could run all day long without tiring (or swim, for that matter). She was smarter than many people gave her credit for. She was pretty and knew it, with her golden-brown hair and big ears. And she had a weakness for mushroom stems and belly rubs. The greatest athlete I ever knew was Mocha, our chocolate lab/"Chesapeake Bay" retriever.