To upper middle-class white suburbanites, few things are more terrifying than a roving gang of hooligans, with the notable exceptions of poor fuel economy and the maid stealing decorative soaps.
But even those people would be hard pressed to find too many reasons to fear the following gangs, most of whom would probably be mistaken for dance troupes and second-rate children's entertainers in real life.
8Red Triangle Circus Gang from Batman Returns
The entire Batman franchise is responsible for some seriously awful gang activity. None so heinously combined our fear of gang violence with our terror of carneys as the Red Triangle Circus Gang as portrayed in the second Batman film.
Answering to the Penguin, this gang was a random bunch of freaks who apparently were so moved by a deformed Danny DeVito that a life in the sewers spent strapping cartoony explosives to aquatic, flightless birds seemed all too beautiful a dream for them.
So with clown makeup, fire eaters and a tiny poodle that catches Batarangs, they left their big-top roots behind and went to work trying to fulfill their vision of whatever the fuck it is a group of malevolent circus freaks thought they'd accomplish by making their dumpy leader mayor of Gotham.