NAPA, Calif. -- Wax on, wax off?
What about ... paint the fence?
Sand the floor?
Sure, Mr. Miyagi's unconventional teaching methods from that 1984 classic "The Karate Kid" are memorable and, yes, the celluloid hero's hand techniques got Daniel LaRusso up and running as a martial artist. But such "handy" techniques are also being taught to Oakland Raiders defensive linemen and linebackers as a means to win battles in the trenches.