Isn't SN enough?
Why combine it with anything?
We saw how quick it is, 5-10 minutes and you lose consciousness, 25 minutes to stop breathing.
In cases of vomiting, some people survived enough to get to the hospital and get administered the antidote...
And this is exactly my point... when the body tries to breathe (as SN deprives it of oxygen), wouldn't breathing in water into one's lungs cause the panic which could awake him from unconsciousness?
I don't know, this just seems taking it too far.
How about taking the SN, partially hanging over a tub full of water... and adding the burning charcoal to the bathroom?
That should definitely kill you, hah?
People on this forum are overthinking.