main reason ppl die from it is because theyre doing it straight out of a lighter refill can. that can basically freeze your airways to death. other reason is because theyre using a bag and passing out in it and suffocating in butane
of course theres other things, like choking on vomit, or simply overdosing on it but if we are talking about "randomly" dying its really because of the user administering it in an unsafe way. not that butane is a safe recreational drug but if you take precautions it can drastically diminish the chance of dying from it
i really dont take any precautions though, other than only using lower pressure, keeping track of how cold its getting, and not placing a shopping bag over my head
this morning i just used a postal shipping bag thing with a hole only big enough for my mouth and nose, then i was like fuck that and i started directly inhaling through my nose. in my experiences, the middle doses arent that fun. if i take one small hit i get this subtle yet beautiful warming familiar buzz. if i take a lot its more immersive like sniffing glue. if i do something in the middle its just this weird feeling. when i did it today it felt like the universe was getting flattened and i had this wasted feeling combined with a hangover for the next hour. i couldnt think or type or anything. thats why i say mid levels are bad...i get passed the point of when its that pleasant buzz and into the territory where things get kind of weird, but the actual psychedelia and total distortion of conciousness arent there yet but the comedown is so its not worth it