I thought they typically had safeguards to prevent this, but maybe not all models do. Not trying to be obtuse here- but how is this different from the fact that

I thought they typically had safeguards to prevent this, but maybe not all models do. Not trying to be obtuse here- but how is this different from the fact that I could go to a hardware store and buy a propane space heater with zero restrictions, then ignore the instructions and use it in an unsafe way? Why don't we require some kind of professional to "prescribe" us a space heater then?