Yeah, indeed eyeballing a fentanyl(alogue). I had acquired a good amount of butyr-fentanyl and thought one could eyeball it (of course, already drugged). After a short time I realized what mistake I've done and added some naloxone from a crushed tildine/naloxone pill, got very agitated and weird (naloxone does that for me) and crossed paths with my landlord when I decided it was time to call the ambulance. Just didn't want to die - thought the opioid effects would come back after the naloxone had worn off, wanted to be under medical supervision.
Turned out the landlord would drive me himself, and sadly he counted one lawyer of state to his circle of friends. First he'd press the story out of me, I thought fentanyl would mean nothing to him so I made another mistake, telling it was heroin and he got afraid of personal consequences - of which of course even if I died would have been few to none in a drug OD case. But as soon as I was in the ER with ridiculously ignorant people who said they weren't responsible for my case and that I had a psychosis and they'd call an ambulance to bring me to the local psych ward (was a major city in Germany btw). By that time I could barely talk, had sand dry mouth etc. from god knows what the assumed fentanyl has been. Possibly a noid, given the potency. And by the same time landlord had already called his lawyer of state friend who told him to call the cops and tell em all. They raided the residence and found my drugs hidden where I put them, in a small forest behind. Were like 40g of all the chemicals you can imagine, and in a conservative German region I thought this might mean prison sentence. It didn't, but the lawyer told me otherwise to keep me paying. The process stretched over two years which were easily the most horrible of my life. I lost my gf, my home, all stuff and eventually money I had, just because of this fucking idiot.
But on with the story, they brought me to the psych ward, where I was immediately locked into a big, bright and lonely room without any supervision because they thought I'd be psychotic to babble about different drugs etc. Had I really OD'd I'd have been dead. As the morning dawned I found myself in the most little, most terrible psych station I've ever been. No books, no distraction, nothing but horrific personnel who told the people to 'let them eat, we also let you eat' and a doc who told me I had 'psychosis, this'll last your life, forget hope'. Then they overdosed me with a cocktail of antipsychotics upon which got me so intoxicated that I forgot who and where I was. After 9 endless days they put me out to street in a city which wasn't mine and little more than what I had on me. Couldn't go back, couldn't go forth with 20 euros being all I had. First bought a bottle of cheap wine in a nearby store then remembered that I had registered my credit card with the German railways so I could buy a ticket in an internet corner. Used the remaining money for beers and drove back to my now-ex gf. The friend who had recommended me said landlord told me that 'there'll come nothing' from sides of police. This was what they told him, and of course only meant him. They opened a case which costed me like 10.000$ for lawyer and expenses, and 3.000$ of penalty, as well as a ban for Germany if I wouldn't leave by myself. My gf lived there, so it was my turn to leave her (she couldn't imagine to move to another country just because of stupid mistakes by me).
There's more about mistakes I made regarding drugs, one of them was to do high amounts of DCK on a daily base (also eyeballed, but from the amount I used to order and the days it lasted I must have used anyhing from 500mg to 1g per day in the end) and making shitty decisions based on the memory inhibition and emotional disinhibition which would cost me the remaining money which I had from saving up over years but the incident above was easily the most horrific occasion mainly because it wasn't my country where I didn't know how hard they'd penalty one and as said that my gf lived there.
Most of such stuff could be completely avoided by a generous legalization of all psychoactive drugs.