Thanks to Edocronian for:
Apostrophe and Burger Fail
Cheeseburger Fail!!
High School Poster Fail
This Does Not Seem Very Trustworthy
"No Check Accept"
Yellow T-Shirt Fail
Quiz Fail
Restaurant Fail
No Exit Fail
Apostrophe Catastrophe
Body Of Water Fail
Back of T-Shirt = FAIL (for more than on...
White Castle Sign Fail
Weekly Starbucks Cup Fail #2
0 
8 
615
wait, what?
keep the door set semi-permanently (“locked”) to the “open” position throughout the “times of occupation”.
Sim-ple!
well, either that, or keep the door open, but make sure the lock is turned in such a way that it would make the door locked were it also closed.
maybe “keep door open when room is occupied”?
We had a sign at work that read, “This Door Must Remain Closed at All Times,” which I amended with, “except when entering and exiting.”
The sign has since been replaced, so no photo to submit.
Re: pannonica: I saw a sign like that, and I took a picture so I may upload it.
While it probably really is a fail, it IS possible that door has a locking mechanism which keeps it from closing.
Perhaps it’s just supposed to be “Keep door lock open”? As in, the lock is faulty and you won’t be able to get out if you locked it. Still not a very well-constructed sentence, but it would be a little easier to understand.
I first read it to mean, “Keep door locked – open during times of occupation”, as in keep the door locked, but the establishment is open when occupied… still not brilliantly written though!
This is actually quite logical and not a fail at all. When you lock the door before it is closed, the lock bar or peg comes out and prevents the door from closing. Thus it is “locked open.” Sorry, no fail here, I’ve seen this many times.