My meth sure as hell doesn't smell like plastic (although it's glass, far from crank), nor would anyone assume something was burning, although that's an interesting description. Before I forget I just wanted to comment on A BEAUTIFUL BOY, I also would suggest that all of you who tweak read it, I read this book as a child and I feel that it helped me, it illustrates in great detail just exactly what happens when you give up and stop caring and let the drugs take over. This can happen so easily to anyone, it will take restraint not to use methamphetamine again once you've tried it, which is why the best thing you can do, is not do meth, not even once.
On the issue of smell, I personally feel it's too difficult to objectively attempt to discuss the odor of vaporized methamphetamine, although I have noticed that noobs who roast the shit out of their bowls, literally attempting to smoke their crystal, that produces much stronger odors in comparison to someone who knows what they're doing with the vaporization.
Methamphetamine vapor rapidly disperses into the environment, and from experience, most people will walk into a room* where crystal was just vaped, like, within minutes if not less, and 9 times out of 10, no one notices the smell.
*Room size is a factor though. I mean, if you have an extremely small room with absolutely no windows, fans, air purifiers, ventilation, etc, like if your room is closet-esque per se, and you were chain-vapin bowls to the dome in your tinyyy 10' by 10' (made up figures) bedroom, and someone walked in, they'd ask what that smell is, it should not smell "smoky" as it's vapor.
But honestly, one of the many concerning things about methamphetamine, it's the fact that it can be used so incredibly discreetly. I've used methamphetamine via multiple ROAs in crowded areas/public places, and discreetly in private property where I had to hide my use in the presence of others (friends, family, friends family ha, I draw the line at getting high in front of children. I will not get high around a kid no matter how many times their sick junkie parent says it's okay to fix up in front of the kids, as if they won't remember that for the rest of their life, or even if they did, that no one cares.
I mean, I remember vividly those days being over at my friends house as a kid when his older cousins and their sureno buddies fixed up crystal, blow, and always black tar heroin. The image is burnt into my memory, the setting and emotions. I saw people shoot heroin before I ever saw someone administer insulin for diabetes, so even today, I tend to associate needles with abuse first and then therapeutic value.