Thank you for citing my previous post, as it saves me the time of having to come up with a witty response to YASQ (yet another stupid question).
But unfortunately, a more thorough shredding of this newbee is called for due primarally to the self contradiction in his question.
First you ask
I have been reading that you can make a form of homemede meth from Vicks inhalers. Is there any truth to that and if so how?
Then you say
I know that it can be done because there was a guy that I knew in high school that did it all of the time,
If you know it can be done, why are you asking us if it can be done?
I suggest you find this guy you went to high school with and ask him to teach you how to do it since he seems to be the only person on Earth who knows.
but he would never let anyone watch him do it. I wonder why?
He probably didn't want anyone to find out where he keep the magical pixie dust required for this experiment.