My Ethical Hacking class had an optional quiz that used the Kobayashi Maru method of cheating without being caught. Write the first 100 digits of pi. I had three different methods; two taped notes and a self-deleting script.
At my first dentist appointment at 18, I found out I had 2 baby teeth still. Yesterday, almost 7 years later, my new dentist found where my adult teeth have been hiding.