The roughest place I've experienced (though not in the UK) is without a doubt Naples in Italy. Drove through it after landing at Napoli airport on route to Sorrento a few years back!
Edinburgh / Glasgow and Manchester are nothing compared to this place.![]()
I can't be a searching for it on my smartphone (my account of Naples), but I would have to agree, having been chased by a gang in Naples, that the people there are harder than my nob when it's being noshed by zefan's mum.