A dad and his son go into a shop when the boy sees the condoms. He
asks his dad why there are so many different boxes. The dad says,"The
3-pack is for when you're in high school, 2 for Friday night,1 for
Saturday night."
He then asks his dad "What's the 6-pack for?"
The dad says 'that's for when you're in college,2 for Friday night,
2 for Saturday night, and 2 for Sunday morning."
Then he asks his dad what the 12-pack is for. His dad replies, "that's
for when you're married. You have one for January, one for February....