On my 50th birthday it was major payback time. My friends put up a bulletin board across from the main entrance to the school with banners, black cake and assorted birthday and over the hill wishes. The best part was the dinasour and his tracks that went all the way to my room.

And my room. :omg The streamers, banners, cake with black icing, dead roses. It was major payback time, but it was all so funny. Of course when the teachers showed up in black to sing me happy birthday in dirge time was priceless.
"If you're going to do something tonight that you'll be be sorry for tomorrow morning, sleep late."
Henry Youngman.