Our building is only air conditioned part of the day, which means the air conditioning is only really effective in the afternoons, soon before it is turned off again. All the offices, and all the classrooms are the same size.
Blackguard: I have a very large class, 32 students! I am so popular and heroic that I have accepted two students over the limit! But the room only has 30 chairs!
Z: I am sure more chairs can be brought.
Blackguard: No! The secretary will get me a larger, more modern room, with air conditioning!
I wish I had that kind of faith.