Sociological factors, the oh, yes, I think a conflict. And if you want to identify with them, so it's different, they're just different cultural conventions. One doesn't know very often why or when some of these conventions developed. All you can do is a synchronic study - look at the way these things are being used now. See if you can identify certain circumstances in which these usages turn up. The chief use of slang is to show that you're one of the gang. Right.