I look at that and I’m not sure that’s right either. Maybe if you took concentrated nicotine extract (pure) and drank it, then yeah, it could become lethal.

I don’t think anyone can smoke enough cigarettes or vape enough to reach a dangerous toxicity level. I’m pretty sure you’d pass out long before reaching a fatal dose. So the only way you could get to that point is to either inject, ingest or otherwise absorb a lot of nicotine all at once. The usual delivery methods (via the lungs) would probably not work for this. I suppose if you rigged up a continual tobacco burner and hot boxed an area with smoke containing nicotine (either vapor or smoke from burning it), maybe? Or if you slapped on a few dozen nicotine patches after smoking a few packs and went to bed?

The only other way I can think of to get that much nicotine in you is to buy high concentration vape liquid and drink it; but I’m pretty sure your body would simply vomit it back out and you’d survive. I’m sure it wouldn’t be pleasant, but it wouldn’t be fatal.

Cocaine on the other hand… I don’t know enough about, but I’m sure people have OD’d on it, so I’m sure there are ways.