I've got some friends that were caught up on OC 80's, one sold them among other things, $300 a day habit snorting, for about 6months, was busted, went into withdrawel, had one of his lungs collapse, and a number of other complications. He's still in the slammer, really the only thing thats saved his life was getting popped, bad but true.
My other friend was in art school as a painter, couldn't even get himself to class at all, was kicked out......he was recently kicked out of his home after moving back in with his parents, why?, because he was caught steeling money from his parents for his OC addiction.
Another OD because he was addicted to oxy and was taking antidepressants for depression, never woke up.
Don't do OC its not worth it, withdrawel once from a nice weekend and you'll be done with it.
I've done it before, feels great at the time, get the nods and try not to pass out.....Then you withdrawel and every cell in your body cringes from anything touch/sound/movement/light. Every one of your senses will ache like none other.
I still occasionally take a 512 or something that does me perfect, but 2weeks apart or more always.....opiates arn't to be fk'd with