Although the locals don't like to talk about it, the camorra has a very strong presence just outside of Napoli, in the cities of Aversa and Caserta. They're also unusually active in the little flyspeck towns of Casal di Principe, San Cipriano di Aversa and Villa Literno, for reasons which baffle me.
Living in these areas one doesn't think about it too much usually, because the camorristas ususally aren't overtly hostile to people who are neutral in their politics. Indeed, they may even offer a certain measure of protection as they DO NOT like other thieves and ne'er-do-wells pissing in their pool, as it were. That said, it's not uncommon to get run off the roads by mobsters running from the Carabinieri, and once in a great while people get caught up in the crossfire between warring factions. This can take the form of literal crossfire, or random bombings (rare), vandalism (common) or sometimes general harassment.
Possibly the most noteworthy thing about them, though, is their very persistence. For every one the cops manage to bust, two more come out of the woodwork to replace them.