It's also very hard to prove that someone inhaled this stuff even very shortly after. Even if you find somone crashed into a siderail on the highway with empty balloons and canisters of laughing gas on the passenger seat, there's no way to prove that it was the gas.
Aside from the fact that people get addicted and do this way too frequently, a ban might help prevent those kinds of accidents.
Aside from the fact that people get addicted and do this way too frequently, a ban might help prevent those kinds of accidents.