I'm sorry, but for me personally, the waiting would be torturous in of itself... I am pretty sure it causes your blood oxygen level to decrease, which I imagine it would cause your breathing to become more labored, causing anxiety to skyrocket... if I ever went through with something like this, I would need to take some strong sedative to knock me out shortly after consuming the SN, or a bunch of strong benzos... I am sure panic would set in otherwise (at least for me)