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...

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 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 asks:
- 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 and a tear in his eye, the dad replied:
- Those are for the married men. ONE for January, ONE for February, ONE for March...etc.