thats an interesting question one of those that you just have to think about for years.... im done...
ya.interesting question. very interesting quesion.id say no cause u cant buy it off the street. and u cant smoke it,inject it. so.... id say no
What the hell? Mind altering substances aren't crack, smack, and thai sticks stupid. In essence yes, if you fell on the sidewalk and as an adverse effect became: Retarded, concrete would be said mind altering substance.
Well I dont rewally have an opinion on this matter, other than you yourself should go out and see if you become retarded by falling on the concrete... its the only way to know for sure!