Ok, the sign reads "DOOR MUST STAY CLOSED. This will allow the A/C to cool properly. DO NOT PROP DOOR OPEN." And then at the bottom of the door? A doorstop permanently involved? How does this happen? Someone probably wandered over to that aisle, grabbed one, screwed it onto the door. (Wonder if they even paid for it?) This was on the door to the staff lounge at our local @HomeDepot. More Failing, More Doing.