Help Can I use SN as safety, while doing another method?

[Sadbanana]

I wad thinking that I would try jumping, but I'm not sure if it's high enough. Access to sn in my country is pretty easy so I was thinking that maybe I could use SN right before jumping or maybe hanging to sabotage any attempts to save me. Do you think SN would make sure I die even if the jump didn't kill me?

 

[NoHorizon]

I was thinking about this as well - I figure if the height doesn't kill me an ambulance would be so focused on stopping blood loss etc they wouldn't be looking at the signs of SN poisoning. On the other hand it complicates the preparation having to transport everything to where I'd jump. Can't exactly weigh out SN at the side of a cliff, and I'm scared to open mine unless I'm at the point of using it as I don't want it to go off if I don't then go through with it.