This article (news.com.au) is a good example of how not to do NO2 (nos, bulbs, nangs, name it what you will, it’s Nitrous Oxide) Seems the kids had a one meter long bottle of it in the boot of their excel (maybe it’s a good reason why not to drive such a pussbox) and it seems that all but one of the four people in the car died. The police say they don’t know if it leaked or if it was them that opened the valve, but geez - you seriously know about it if you’re affected by the gas - they should have known better and stopped. STUPID PEOPLE DIE!