A man walks into a drug store with his 8-year-old son.

They happen to walk by the condom display, and the boy asks, What are these, Dad?. To which the man matter-of-factly replies, Those are called condoms, son. Men use them to have safe sex.

Oh I see., replied the boy, pensively. Yes, Ive heard of that in health class at school. He looks over the display and picks up a package of 3 and ask, Why are there 3 in this package?

The dad replies, Those are for high-school boys. One for Friday, one for Saturday and one for Sunday.

Cool! says the boy. He notices a 6-pack and asks Then who are these for?

Those are for college men, the dad answers, TWO for Friday, TWO for Saturday and TWO for Sunday.

WOW! exclaimed the boy; Then who uses THESE? he asks, picking up a 12-pack.

With a sigh, the dad replied, Those are for married men, One for January, one for February, one for March…