Quick Question

Hi everyone. How's everyone doing? Well I just wanted to know, you know how heroin will be laced with fentanyl?? And if a person doesn't know and they inject it or snort it. Then they will OD !? But what if s person smoked it? Could they possibly fall out too?
Its just mixed in with the heroin. You cant tell. Yes you can OD from smoking it.
thank you. For helping me out with my question.
Your very welcome.