TRUE STORY: An eternity ago (1964 to be specific), when I was in third grade, my school (amazingly) allowed me to go across the street to my home for lunch each day - as long as I returned before the bell stopped ringing.
One such day, as I was about to rush back to class, I realized I had a major need to visit the bathroom, which caused me to barely make it back to class just as the bell went silent.
As I sat there in class, sweating and trying to catch my breath from my run, I began to laugh uncontrollably. I think it was the hardest I ever laughed in my life, until this very day almost 60 years later. I laughed so hard that my sides started to ache - so hard that I just about fell out onto the floor.
Of course the teacher asked me what was so funny, and between laughs I told of my lunch break, and the need to visit the bathroom. But, as I approached the conclusion of my story, I could hardly speak from the laughing.
Finally ... between gasps .. I shouted to the class ... "Waste ... makes ... haste!"
I'm smiling now as I recount the story.
Very clever for a Third Grader! That is funny.