Well, if you think about pure potential for adverse effects, I’d have to say alcohol. Pot very rarely makes a person violent, and, despite their inability to add to society, they are not actively destroying society. Alcohol, however, lowers a person’s inhibitions…in freudian terms, it removes the voice of the superego desires, leaving the id desires with more control over the ego. This allows for drunken stupors, or for drunken rages, which can be much more violent, and much more destructive, than marajuana.
However, another factor to consider is that, in people with ADHD and other attention based disorders, alcohol can be a calming influence, and can lead to a more focused approach, as its a CND, and reduces the hyperactivity of the person imbibing. Likewise, some of the greatest writers of the world have been alcoholics, and have done their best only while intoxicated. So the negatives should probably be weighed against the positive.
Of course, if we broaden the scope of things, we find that heroin is the worst of all of them, with cocaine as a close second. Why? They cause people to be more active, and less restrained in their actions, giving a much greater chance of destruction. In addition, they’re highly addictive, and have been known to drive people to robbery in order to gain the funds to replenish their stock. Have you ever seen a pothead rob someone for money? no. Why? Because when stoned out of your mind, you’re far too likely to forget the gun at home. And drunks? well, they just tend to become bums when they’ve exhausted their money. The harsher drugs are far worse. Especially since they have a much stronger component of physical withdrawal.
So, drink and smoke as much as ya can, just don’t snort, shoot up, or chase any dragons.