My Friday-Saturday gallery will include a caption entitled ``satin-dress``. If you are not a Canadian or an American you will need to listen to Gordon Lightfoot`s song ``Sundown`` to fully understand it. / To understand my caption ``soda-pop`` you must understand that as late as 1980 a survey showed that the coeds of an elite engineering university believed that a douche of Coca Cola before or after sex was an effective contraceptive. Experiments showed the carbonic acid from the carbonated water would nullify sperm in a minute and that as a contraceptive it was 50% effective. So American girls who should've known better for a long time, didn't.