No I've seen it. But using this vid to make this point is out there a tad bit. I and most men know the so-called "history" behind this, but that is not the origin of the sagging trend.
The "sagging" trend started because of the hand me down clothes that big brothers used to give to little brothers to wear. So of course those clothes were way too big. And we being poor people we made the best out of it and turned it into fashion.
Meanwhile you got these faggots in jail who came up with they own definition. A man sagging is a man who is spoken for or not spoken for etc... Faggot shit. So people take that and try to "shock" a cultural habit with it. Shit didn't work.

It didn't work because nobody is sagging their clothes to identify themselves as a fag.
Now I don't sag, never have, never will. But this "prison" shit being real life need to stop. Prison is prison and shit is fucked up in there. How the hell would some shit like that infect the outside population like that?