The kindergarten class had a homework assignment to find out about something exciting and relate it to the class the next day. When the time came for little Johnny to give his report, he walked to the front of the class and made a small white dot on the blackboard.
The teacher asked him what it was. "It's a period," replied Johnny.
"I can see that," said the teacher, "but how is that exciting?"
"I dunno," said Johnny, "but this morning when my sister said she missed one, Dad had a heart attack, Mom fainted, and the kid next door left town!"
