A father and his young son are in a pharmacist's one day when the young boy notices the contraceptives rack. "What are those for, dad?" he asks, pointing to a 3-pack of condoms. "Well son," replies the father "They're for the single fellas that go out chasing women on weekends. there's one for Friday night, one for Saturday night, and if he's lucky, one for Sunday night". The father then points to a 6-pack of condoms "This pack here is for guys who have steady girlfreinds. There's one for Monday, one for Tuesday, one for Wednesday, one for Thursday, one for Friday, one for Saturday, and then they have a day off on Sunday". The small kid nods to his father in understanding, at which the father points to a 12-pack of condoms, and says "This 12 pack here, this is for married couples. One for January, one for February, one for March........"