In the It's Always Sunny in Philadelphia episode (Season 3, Episode 14), the Gang's attempt to "clean up" South Philly quickly descends into a chaotic parody of vigilantism and police corruption. The Catalyst: An Alleyway Incident

join "Philadelphia Citizens for Justice," a neighborhood watch group. Frustrated by the group's lack of weapons and authority, they decide to become vigilantes modeled after the Guardian Angels , complete with red berets and black tank tops.

Mac and Dee's attempt at community service fails spectacularly. After being dropped off in a "bad neighborhood" by actual police officers, they are quickly robbed at gunpoint by a homeless man (played by Rob McElhenney's real-life father ). The Climax: Charlie as Serpico