I punted in Leeds a few times many years ago and one incall made me super-nervous. It was in a really-dodgy looking block of flats, covered in graffiti, and had a gang of track-suited baseball cap wearing druggies hovering around outside it; I kept having thoughts of Trainspotting running through my brain, not helped by the WG in question (white, late 20s I think) causally mentioning that her (female) roommate (friend? fellow WG?) was around but passed out on her bed in a druggie/drunken haze, so after my shower, we would have to shag in the living room... which turned out to be clean, spacious and airy, with a nice picture of a 9 year old kid and the black dude I took to be the dad on a shelf nearby.
I distinctly recall looking at that picture and grinning to myself as this woman stripped off and went to town on my dick as we sat on the sofa together; she really did know how to give excellent head, and the 30 minutes I had with her went by very pleasantly. After the sex was over, we chatted about how she was planning to get her own place to do incalls (usually she just did outcalls). Looking back (Leeds is a place I've been in very infrequently and I've not punted there in nearly a decade), I've often wondered whether she went the way of her junkie roommate or if she ended up more entrepreneurial businesswoman. Glad I didn't walk but it is one of the few times a shithole hasn't turned out to be a warning sign of a rip-off/danger.