Considering I've been using IV opiates for over 13 years now, I'm pretty ok with the fairly short list of bad things I've done, and just as short list of things I didn't stop.
-Twice in my life I couldn't pay a good friend back for a front, one for a 1k and one for 200. By far the worst direct action.
-A girl cheated on me so I cheated back, but I went really over the top with the revenge cheat. She got really fucked up and fucked an ex at a party, then I fucked a girl she really hated in our bed while she was in the hospital nearly dead from endocarditis after giving her all the drugs that were my gfs to pay for it. Really feel I went way too far on that one. It definitely didn't help that the evening was continually interrupted by my gfs family blowing up my phone to scream at me like it was my fault she had endocarditis and because I didn't tell them what happened (gf said SHE told them). I taught her proper injecting safety and gave her clean needles but noooo she has to go needle sharing and not being sterile anyway, AND she was already an addict long before we even met.
-I lie to my family all the time about why I need money, but only feel a little bad about it because well I only say it's for fun anyway and they have plenty of it. Does it *really* matter that the $200 is for dope and not clubbing?
Then there's the things I really should have done something about...
-Very good friend was on a cocaine death spiral. Every day shooting obnoxious amounts of coke either almost ODing or actually ODing every time. Talking multi-gram shots of fire coke that sent me puking off 50-100mg shots. I really should have helped him, but instead cut all contact just because I didn't want to be there when the police inevitably showed up because EMS had to keep taking him to the hospital for cocaine OD or because he kept shooting holes in the roof with an illegal gun in a suburban neighborhood with houses all around, no matter how much I screamed at him to put the fucking gun down. He did eventually just get arrested (unrelated charge; popped for forging medical paperwork to get oxy scripts) before he died fortunately... still, I should have done more.
-I just looked the other way when a friend kept letting his tiny dog lick his fingers after handling crushed oxy until the poor dog wound up addicted to oxy too. Got so bad they just start chopping pieces of pills so the dog didn't get dopesick, which did happen when they ran out and seeing it literally made me tear up. I had already gotten enough backlash after I bitched about how he was frequently so high he couldn't pick up his middle-school aged son from school or drive him anywhere else, which I just wound up doing myself half the time when his dad found out I actually gave a shit. What was I gonna do, he was a critical business partner. Shockingly well adjusted and good kid though, considering his father, 2 brothers, uncle, aunt, great aunt, grandmother, and grandfather were *all* serious drug addicts (some to oxy, some to oxy and coke/meth) I also did business with, and his mother was also a drug addict and so severely mentally ill she couldn't complete a sentence and never left the bedroom, ever, in the 3 years I was around the family. Sure I was an addict too, but I'm generally very responsible and never too high to act normal and drive besides late night partying once or twice a week. So I gave the kid my number and told him to just call me if he needed a responsible adult for something.
All that is a long time ago tho, past 7 years I just live a normal life where the only person who even knows I still use is my connect I see a few times a week for a few seconds.