One time while trying to score dope in Denver, my husband accidentally bought crack. Heheh.
Learned quickly how to score on the street in Denver, have never been robbed even though I'm a white chick from a small town. The key is to look like you know what you're doing. I always buy one first to try it and come back for more. In my experience the legit dealers will usually let you try it free first.
Definitely been burned of small amounts when I was younger.
I've definitely ripped people off before feigning for dope, mostly overr charging so i could get something off the deal, but I particularly feel bad about this one time, a kid I knew burned this dude I went to high school with. Two days in a row. I didn't actually do the burning but I was there when it happened and didn't stop it, because I knew I would be able to get high once he bought the dope. I have since tried to pay back the dude, once with money and once with subs, and he just called me a dirty junkie bitch (which I totally was) and wouldn't take it.
I've been super lucky in all my time buying dope in Denver I never was harmed or robbed. And after the first time with the crack mishap, I was always the one who bought the dope.