Just wondering ...

So what differentiates a clique from a gang?
..if you call it a clique, but there's violence involved doesn't it really mean it's a gang?? hmm, i'm confused.

***lets take it to Webster:
gang-a group of persons working to unlawful or antisocial ends; especially : a band of antisocial adolescents
clique- a narrow exclusive circle or group of persons; especially : one held together by common interests, views, or purposes

--hmm ok, so what if the common interest is fighting or stealing, does that still make them clique??..i mean but what if it's a large number of people in a group..that doesn't make it so exclusive anymore? but i mean the people in the gang could be people in one's circle? this is confusing, who knows?