Young kids starting to smoke find out that pot actually isn't as bad as people have told them. Society labels it a drug right? So, what do you expect them to do? I think they would see what other "drugs" aren't as bad as everyone says. I.E., Coke, Ecstasy, Meth, probably not heroin at this point. They shouldn't label weed a drug, it just gives people the wrong idea about drugs. Plus once your tolerance goes up we can no longer afford to get the kind of buzz we desire and sustain it. So some people end up resorting to other methods, and end up getting hooked on others. Some paranoia comes with beginner smokers, but doesn't take long to subside. This is his hint to you that something is going on. Most likely not laced, i might have stumbled across that once in three years of smoking. Even there they told us it was laced, but after smoking it none of us thought it was and had no desire to make loads of money or get extra paranoid.