Dream of

The strangest dream I have ever had was a couple years ago before Zombies were a big thing. It was probably around 5 years into Robert Kirkman writing the Walking Dead comics at a time when I didn't even know the Walking Dead existed. In my dream I was at my school and all of a sudden everybody started turning into Zombies. Somehow, because it was my dream, I was the one who realized that the only way to make it out alive was to go into a classroom and stay there, but you couldn't stay in that classroom after the bell rang, so once it did you ran for your life to the next classroom.