Brought a grin to my ugly mug - when stationed in Italy and living downtown, the Itals had Vigilantes who got paid each month to watch over your car and home. Those that didn't hire them soon found out that no protection was like putting a neon sign on your house to beckon the crooks.
The mafia eventually took over and were more professional and friendly. They would actually give non-members a freebee and fill them in on the details of who they caught and what they were after. If you declined to pay after that, you were on your own.
My husband is certain that Anti-virus programs are sold by the people who create the viruses!