Okay, after quite some time playing in the physics lab (is this the lab below the science room? It seems unlabelled?),
The table marked “spare table” (or similar), when interacted with, reads “you better not touch anyone else’s work,” the same as the other tables.
Should this be the one you can interact with? Nothing else seems to work.
If you are dead (say, from messing with the tables) when the alarm finishes and the teacher comes in, the game freezes on the hourglass symbol.
If you are in the hallway when the alarm ends, a message appears saying something like “error: contact administrator.”
I’m still stuck!