DEL MAR, Calif. - Lava Man was lounging in a corner of the Del Mar backstretch, sequestered from his usual stablemates just across the road. The walls of his prefab stall still had that new-plywood smell. There was thick padding and soft bedding, a canopy providing shade from the summer sun, and just across the way he could stare into the baleful brown eyes of his pal, the pony named Charlie.