I knew a racing dog once... down Florida way...greyhound, if I remember right. He lined up on a track with all the other greyhounds. Gun went off. Dogs went off. Around the oval. Toward the wire. Chasing a mechanical rabbit. Until this particular greyhound retired. Called it quits, just like that. I didn't know him all that well. But, as luck would have it, I got invited to his retirement party…