at my first job, the thermostat for the whole floor was in the HR manager’s office. the HR manager decided that even though the thermostat was in her office and she could control the heat, it wasn’t enough. She brought in a portable space heater and left her office door closed.
This had the effect of ensuring the heat almost never ran during the day, and the building was often 60 - 65 degrees.
This happened every winter, and every winter she was told not to run her space heater. Every winter, the building would get cold. Every winter, someone would knock on her door and ask her to turn off the space heater. And every winter, she would deny having it running despite the fact that it was 90 degrees in her office.