As I wrote, and as everyone should know a CARBON MONOXIDE alarm is neither optional not is it humorous. I have one in the living room area and another in the bedroom. Both are loud enough to hear inside the third rig down from me.
A car driven by a schooled and trained driver can be very safe. In the hands of some however cars kiss trees, try to learn to fly, or have sex with the Fruehoff flatbed in front. It isn't the car's fault seƱor Pianotuna, nor is it the car's responsibility to stay safe. Just like trying to use a briquette loaded hibachi in an enclosed garage, it is up to human beings to exercise that lump of gray stuff located between the ears. No CO producing device should EVER be used in an enclosed area without have A PAIR of CO alarms monitoring the environment. I manage to burn 1.62 calories from time to time and press the test button on them. Both also have Lithium 9 volt batteries, which will outlive me.
Cars killed what 10,000 times the number of victims that an RV cat heater has so much as given a headache to. Should automobiles be scorned or outlawed?