20 years ago, I was a meat cutter in a smaller grocery store. The store was in a building that had been a huge supermarket that had gone out of business. Before the smaller store had opened, they remodeled the building and divided it into 3 different sections. At the back of the grocery store was a back office that was hidden. To get to the back office, you had to go to the very end of the backroom, duck behind the cardboard baler, walk down a hidden 20 foot hallway and then go around a corner into a small storage space. The back office was at the other end of the storage space behind stacks of boxes. You could hear everybody in the backroom long before they got near the back office.
I was dating the manager at the time and we would have sex in that back office 3 or 4 times a week for almost 4 years. We almost got caught one time by the night time manager (his nephew). Normally the nephew and the other night time workers would be so loud that everybody in the store knew where they were. The time he almost caught us, he was being very quiet and I think he was wanting to hide in the back office. He to the back office while we were in there having sex. He tried the door, but it was locked. He knocked on the door but we never answered. There was a small tinted window to the office. He tried to look through the window (and would have seen us buck naked with the boyfriend fucking me) but the office was pitch black inside and you couldn't see anything. He questioned us if we had been back there, but we said no. He just had a smile on his face. He knew better.