how to make carbon monoxide poisoning look like an accident

[aaaaaaaaaaaaaaaaaa]

Any ideas? I don't really want my family to know I killed myself because I feel like they'd be able to recover better if it was an accident. If that makes sense.

I just want some ideas so if I ever decide to go through with it I can have something to fall back on

 

[LostInMyHead]

Leave the car running in the garage while you are "fixing it". If you have a new car it takes forever to get levels high enough (unless the catalytic converter is missing) . It can happen though. I used carbon monoxide monitors to get an understanding of how long it would take. I aborted but blood levels of carbon monoxide were near lethal.

I am going to try to get my hands on ketamine to help suicidal feelings. I would rather want to live than CTB.