i did something so stupid in class today

im pretty sure everyone thinks i am like the smartest kid in our math class but today idk what got into me. we were having a test and my teacher was walking around checking papers, and i got nervous or maybe i just spaced out. so instead of answering the question that was super easy and all about pi, i wrote an essay on why it is better to use pie day as a holiday than valentine's day. yeah, like really long explanation with everything. then my teacher comes over and im so embarrassed, i even tried to erase some parts but obviously you can still read it. everyone started laughing and i felt terrible. i just wanted the floor to open up and swallow me whole.