Teaching story from a state university.
Students: Brrrrrr (teeth chattering, arms crossed over chests, turning slightly blue)
Professor: Is it a little cold in here?*
Professor: Hm. So weird. Especially since last week, it was about 95 degrees and three of you fell over from heat exhaustion.
Professor: (calling Facilities line) Excuse me, I need to report a very cold classroom. It's really too cold in here for students to learn comfortably.
(Class continues for about ten minutes, student sitting under the air vent loses a few fingers to frostbite)
Facilities Guy: Hi, I'm here from Facilities.
Professor: (totally speechless that someone has responded this fast)
Students: (totally speechless from cold/seeing a Facilities Guy in the flesh)
FG: Did you complain about the temperature?
Professor: Oh, yeah, sorry. It's been very cold in here today.
FG: (walks to thermostat) Did you adjust the thermostat?
FG: Well, it's set at 60. Maybe if you just turn up the thermostat.
(Entire class dumbfounded)
Professor: Wait. The thermostat...WORKS?!
FG: (Rolls eyes, leaves room)
Professor: WAIT, THIS CLASSROOM HAS A WORKING THERMOSTAT?
Students: Whoa. We've never seen a working thermostat on campus before!
Professor: I know. I don't even have a phone.
* Outside, it is a nice, balmy 52 degrees.