It’s Payback Time- Teacher Pranksters
Do Not Disturb
Is this an episode of Tom & Jerry? I thought tricks like this were only supposed to work in cartoons.
This teacher must have taken inspiration from the show and found a way to finally get some peace and quiet on his lunch break.

Do Not Disturb
If this teacher did all of this just to catch a break please don’t bother him, he must really need it.