Don

By judgment call, I mean a guard is meant to guard, but they might claim they are guarding (for example) by guarding the front door when someone sneaks in the back door.  Was the guard doing his job or not?  This is a judgment call, at least in some cases.

But if someone is told to NOT do something and they do it, they is no debate about whether they obeyed the charge, they did not obey.  So those are more black and white decisions.