what should i do if a new neighbor is smoking while on oxygen?

he was smoking outside and i mentioned it to him about smoking while on oxygen, he shut it off but still i heard even if you shut it off it can still start fires, people in my bldg smoke but i think its even more stupid to do it while on oxygen, even if hes outside he could still start a fire,should i report him to my apt manager or to someone else and if so who? i get it that people like to smoke but hes putting everyone at risk of a fire starting, even if hes outside it can spread towards inside the bldg. i myself have never smoked and never done drugs and dont drink, i know people like to smoke but what do you do when theyre putting others in danger cause of it?

Nanoose · 61-69, M

Those tanks don't just cause fires they can also cause an explosion. Also if those tanks are dropped and the valve gets cracked it can take off like a torpedo with enough force to go through a cyder block wall. I don't know what you can do except stay a few hundred feet away when he is smoking well on oxygen. Cheers!