School reports are difficult...
 

A boy was assigned a paper on childbirth and asked his parents, "How was I
born?"

"Well, Honey..." said the boy's mom, "the stork brought you to us."

"Oh," said the boy. "Well, how did you and daddy get born?" he asked.

"Oh, the stork brought us too," chimed in the dad.

"Well how were grandpa and grandma born?" he persisted.

"Well darling, the stork brought them too!" said the mom, by now starting to
squirm a little in the Lazy Boy recliner.

Several days later, the boy handed in his paper to the teacher who read with
confusion the opening sentence: "This report has been very difficult to
write because there hasn't been a natural childbirth in my family for three
generations."