Hi, I came very close to dying by this method on January. I taped myself into my bed room with a portable generator. My doors didn't lock. Someone how in a black out state of unconciousness, I "sleepwalked" accross the house into my kitchen and woke up on the floor, half gone. Survival instinct is strong, I should have bollted my doors. I ended up crawling out of the house because I was disoriented and panicked. I still have my generator, and it's my sense of peace that if shit goes bad again, I will know exactly what to do... and not do..... I realize why when people gas themselves in cars, they cut off the doorlocks or disable them somehow. I had thought of everythign but that. Or I could handcuff myself to the bed..... Lesson learned. I think I woke up because I was on the floor and co2 rises. If I had stayed out, i would have eventually took enough in to die.