This Olympic Shuttlecock is no Poppycock DAVE BARRY ATHENS -- They don't play badminton at the Olympics the way you play it at home. The way you play it at home is, once every three to six years, usually on the Fourth of July, you dig out your cheesy drugstore badminton set, which is buried deep in the closet with your cheesy drugstore croquet set, the two sets having intermingled over the years to form a new sport, ''crominton,'' or maybe ``badquet.'' You spend the next hour and a half trying to assemble the poles and untangle the net, which...