Today, a thirteen year old boy suffered from acute cognitive dysfunction after learning that he was not going to have his usual twice a week chocolate milk shake. This horrible mental attack was marked by irritability, distraction and sudden loss of all mathematical facility. As a consequence he was unable to complete his summer math homework.
The surprise arrival of cookies seemed to alleviate some of his symptoms and he was able to successfully work on his current math assignment and smile again. He reflected thoughtfully on the unfinished summer math, "If I get all 102 out of 150 problems I did finish correct that will be about 70% and I'll still pass the assignment."
This was today's tempest in a teapot.