I REQUESTED FRIDAY OFF BACK IN DECEMBER. WHAT HAVE I FORGOTTEN I HAVE SCHEDULED FOR THAT DAY?

My boss just reminded me I have Friday off. News to me. Apparently I requested it off back in December. What the hell did I forget? Please suggest answers.
  1. Court date?
  2. On old girlfriends birthday?
    Suggested by   @iammeghanmurray
  3. Alien invasion? 👽👽👽
    Suggested by   @jennifergster
  4. Long weekend trip?
    Suggested by   @classyAF