My mother somehow got her hands on a real police uniform (I'm not going to ask how - I don't want to be listed as an accessory after the fact) and showed up as "Grammar Cop" handing out citations to her university students.
Apparently, DG has some sort of anti-pickpocket association that their own methods of ruining the day of pickpocket gangs, sometimes with unfortunate results for members of the association when they underestimate the numbers or determination of the gangs.
Somehow, I've got to find a way to make contact with these people.