Many years ago I worked as a contractor at a financial institution that was a little full of themselves. I had to be escorted from the entrance, through the main office, to a smaller, "less secure" room inside the main office. The bathrooms were a short walk away from the less secure room through the main office so I had to have an escort to go to the bathroom. The escort would wait outside the bathroom for me and escort me back to my desk. While annoying and inconvenient (and ridiculous) it wasn't really a big deal until I came out of the bathroom one day to find the escort had disappeared. (I later found out he had someone kind of family emergency and had to run home, I guess dire enough that he didn't have time to inform me.) I asked around the office where my escort had gone but no one knew so I walked back to my desk on my own.

The next day the CTO called me into his office and said he should have me fired right then and there for violating security protocols. I explained what had happened but he didn't care because it looked bad for him. Apparently I should have had someone call security to escort me back to my desk.

Two months later they started construction on the room I was in to provide a path to an exit that didn't go through the main office. To use the bathroom I had to go through that exit and leave the building, walk outside to the main entrance and use the "non-secure" bathroom and then be escorted back to my desk through the office.