Your analogy is flawed. You assume the smoker is ignorant of the fact that there is a gas leak. It would be better to say the smoker went into a gas filled ho

Your analogy is flawed. You assume the smoker is ignorant of the fact that there is a gas leak. It would be better to say the smoker went into a gas filled house with signs that said "NO SMOKING!", smelt gas, looked around and lit up anyway.