the original access to these loo's was from an area that's now been closed off - right behind Popeyes, it was a walkway between the shops and had stairs that led down to the toilets.
I once was caught short with stomach cramps in my teens and had to leg it down there for an emergency dump. In my naivety at the time, I just thought the group of blokes all stood together at the urinals must be mates and talking while they had a slash, however once seated and on with the business of my dump, someone tried the door of my bog and then knocked on it quietly too!!!! I shouted "sorry, this one's occupied" assuming they were also in need of a Brad Pitt but then the pervy fucker stuck his head under the door and looked in!!!! A well aimed boot at his face soon made him withdraw and I finished what I was doing and quickly went to leave - when I opened the door rapidly and went to get away sharpish, there were two more blokes hovering around the door and the sudden realization hit me of what they were all up to. Needless to say, I ran up the stairs, out of there and never used those toilets again!!!