International Pi Day is a wonderful day that brings math nerds and foodies together. What could be better than pondering the irrational number that is Pi, eating a pizza pie or enjoying a homemade delight like a hot apple pie. I almost made it through the day without encountering the dreaded ear worm that is the Pecan Pie. Why Pecan Pie? I blame Billy Crystal and Meg Ryan. You see, whenever someone mentions Pecan Pie, the scene below automatically enters my mind and inevitably stays there for hours as I repeat over and over Pecan Pie.