Knock, knock
Who’s there?
Lettuce!
Lettuce who?
Lettuce in, its cold out here!
Fannie Mae and Freddie Mac got together and got married in Loan Town, USA. And had a baby the banks called Foreclosure, and they lived unhappily ever after in their new economy life styles.
Two strands of DNA were walking down the street. One says to the other, "Do these genes make me look fat?