Dude, I know this hella cheap way to get high. first you get a few cartridges of nitrous and a can of rubber cement. then get a plastic bag. put the nitrous and the rubber cement in the bag, cans and all, and beat it against your head for a few seconds to a minute. I swear every time I do this, I get launched into a whole 'nother universe. The point is there is NO safe use of fumes/inhalants. PERIOD. Look it up on Erowid. oh, unless you dont think they're a qualified authority. But go ahead and do them if you want, the world needs far less retards.