if someone really is 100% set on killing themselves, they should either do something honourable or make sure that their death is gauranteed. Failed suicides are horrifying to watch. While hangings seem cool, most failed suicides happen during them. This is also because they are common suicide methods, but you get the gist. Shooting yourself is the safest bet.
Suicide is for the lowest of the low. People who feel like they have no other ways out or forward. While suicide CAN be well planned or thought out, most of them are emotional decisions. I'm against it, it should be reserved for those who can charge at the idea logically and still follow through with it.