My recollections of Naples, both as a student staying with local friends in one of the tenement areas of the centre, and as a tour director taking a coach full of Americans through there;
Going out on the balcony of my friends' flat during a major international football match and being able to see dozens of blue flickering screens through the open windows of the neighbouring flats. At a certain moment there was a HUGE roar of "GOOOOL!" that seemed to come from the whole city, and within a few seconds fireworks started going off everywhere.
Sitting out in the piazzas at night- that's where everyone socialised as they couldn't afford bars. You could get a beer from one of the many little corner shops, but there was no drunkenness.
An amazing local festival with traditional music and dancing(like the Tarantella but not) everyone got up and got involved.
Being told there was no petty crime in that quarter because if you got your bag nicked or something the local Camorra boss would track the thief down and get it back for you.
During the rubbish strikes, amongst mountains of garbage, one of my tourists elected to stay outside the stupid cameo factory I was obliged to drag them to, and witnessed a punch up outside a bar in front of a mound of rubbish, various bystanders screaming like banshees and clinging to the protagonists as the cops tried to arrest them. Highlight of his trip apparently 😆
The coach driver, on our way to Rome, insisting on pulling over at the side of the road to meet a mysterious associate with a large box that he wanted him to take with us. Never happened anywhere else!
I suppose your reaction to these kind of stories determines whether you'd like Naples. Me, I'd go back like a shot!