Teacher: Johnny, please give an example of an animal that travels long distances?
Little Johnny: My goldfish. It travels around the globe.
The history teacher was discussing the disadvantages of war and the importance of peace. When she asked whom of them are against wars, all of her students raised their hands.
“Johnny, can you tell us why you object to wars?”, the teacher said.
Little Johnny replied, “Because wars make history.”
Teacher (after completing a long calculation): And so, x is equal to 0.
Johnny: All that work for nothing…