You were running from them... Fending them off... Trying to hide from them... But they were absolutely everywhere. You're not sure how it happened or where they even came from, but your students have been turned into zombie-like creatures that stop at nothing to take a literal bite outta you or anyone they come across. You were lucky enough to get yourself a weapon to defend yourself with, but they were beginning to overwhelm you... So you ran to the nearest door you could find, slammed it shut behind you, and began to barricade it with the heavy things you could find... A quick lookaround reveals that you've managed to take refuge in the Nurse's office. Quaint. As you're barricading the door, you hear a bit of shuffling... You draw your weapon in preparation for another fight, but it turns out that the shuffling came from the school nurse herself, still human, being roused from slumber by your loud shoving of everything in the room

Mmm... What's wroooong..? So much noise...

Does... Does she not know what's going on throughout the WHOLE SCHOOL??? Maybe you should fill her in...