Thanks subotai, I ended up just tossing it pretty soon after posting though. Just seemed gross...
As long as your product isn't adulterated with fentanyl, you run it through a micron filter, and are smart about IV technique heroin's safety profile is pretty similar to other opioids... Despite it's stigma It's really not like heroin is light years away from something like say... morphine or oxycodone. Don't worry myco, I can literally count the amount of times I've shot H with two hands.
Every few years me and my girl have a small amount of fun with H and move on. I honestly could never bring myself to play with a needles more than I do. Your post was pretty irrelevant to my question though and more of a typical "heroin is bad" response. I know we're tight and you mean well but I'm well aware of what I'm dealing with here and don't need any lectures.