Who would had thought that leaving the back door wide open to better ventilate the server room (air conditioning is too expensive) would allow miscreants to enter illegally and commit heinous crimes? You can't foresee that, do you.
that's exactly what i saw at a Daisy DC in Reading ~ 2018. I went in to do an audit of some stuff in our "secure" cage & remove some old kit. I parked around the back and saw the back doors wide open and some vans in the vicinity, some work was obviously happening but i did not see anyone.
I thought about walking through but as this was my first visit & i didn't know where i was going i thought i'd better go through the front door.
The usual theatre was performed, long wait in reception, escort to our cage and i could see my parked car on the way as the doors where still open. i had a moan and was assured there where invisible people there.
I removed my stuff, borrowed a trolley and just took it out those open doors and into my car, still no evidence of work people.
i left through the main entrance to maintain the theatre.
When i got to my car i remembered i left my tool kit so in through those open back doors and to our secured cage that was still open (they had the lock) and retrieved my stuff.
Still no evidence of work people.