'No exceptions!': IT Manager says "no overtime," has to drive to site in the middle of the night to fix emergency himself when team complies

If you're in a line of work that frequently deals with emergency break-fix scenarios where you're effectively permanently on call and might be expected (or required) to spring into action at a moment's notice at any time, having an expectation set that you'll never work overtime doesn't really work. Yet, that doesn't stop petty managers from setting petty rules for their frontline staff who are handling these types of situations. But, to be fair, it's not as if they really understand the industries that they're managing anyway. 

You'll hear and read this sort of story time and time again throughout your working life, and it will usually be told as a kind of warning against setting absolute policies without exceptions. Still, plenty of authoritarian business managers and owners will throw their weight around with these types of "no exception" declarations, and while it sounds good at the moment, it's always going to go poorly.