No. of Recommendations: 1
The main problem however is ensuring that the chosen method is fool/error/incompetence-proof as has already been discussed.Have an anesthetist put them out. Then wheel them into a decompression chamber. Decades ago, I watched a series "The Body In Question", where the host of the program used himself as the subject, to demonstrate how people can be entirely oblivious to the fact they are suffocating, if the CO2 doesn't build up. I just did a net sifter search to make sure high altitude hypoxia was painless and fatal, and the net sifter directed me to a suicide crisis line. So much for man's search for knowledge. :)
Ah, the net is a wonderful thing. The hypoxia demonstration starts at the 46 minute mark.
The Body In Question, Part 4YouTube: The Body In Question, Part 4 (lazenby)Steve