On Saturday, November 7, 2015 at 8:13:50 AM UTC-8, wrote:
Geez guys...let the man do what he wants with oxygen.
Social darwinism will be the final judge.

As mentioned above he risks not only his life but the lives of others in the air and on the ground, with he dumb ass idea of kluging a medical oxy system for aviation oxy. Social darwinism will take him out in another way, like when he uses the butt of his loaded pistol to hammer in a nail.