Father & son in supermarket. ''Dad, what are these?''..''That's a 3 pack of condoms son for secondary lads. ''1 for Friday night, 1 for Saturday night & 1 for Sunday night''
''What about the 6 pack dad?''...''Those are for University lads. ''2 for Friday night, 2 for Saturday night & 2 for Sunday night''.
''Well dad. What about the 12 pack then?. ''Married men son...1 for January, 1 for February, 1 for March & so on.
