Locked In Hell

Locked in hell means locked in school. You've been locked up at school all weekend. Wandering through the corridors, you come across a guard, but without listening to your words, he hit you with something heavy, and the locked one woke up again in the same place where he woke up the first time.  

Your task is to escape or wait for the school to open without falling for the guard. The guard, in turn, does not just sit still, but walks and looks through all the floors.   

Good luck!