This is worse than a no-brainer. Can we say DEAD DEAD DEAD. CO is as bad as it gets. You may think you’re smelling it and can tell if it’s too much. WRONG. You’re smelling burnt gasoline and a little oil. You will NOT smell CO. You will drop like a rock. You risk death. Even if someone drags you out to fresh air, you will not recover for weeks and will be in serious shape in a hospital. Once in the body, CO is very hard to get out and can still kill you. Don’t argue with this idiot. Lay down the law - period. Good Lord Almighty.