I just discovered that the heating/cooling unit for my office is tied in with those of three or four of the offices around me. If one of the others is set to cooling, the heating doesn't work properly in any of the others. I'm on the east side of the building; the people on the west get the full brunt of the afternoon/evening sun when it's clear. So it can be rather toasty across the hall at the same time it's quite nippy on this.
Like it was today. And one of them had their cooling on.
Brrrrrrrrrr.
What the fuck is the point of having individual units if they can't operate truly independently?

Only in the land of group consensus.... (sigh)