This might not really be an answer to your original question, but I just have a thought on some of the anti-drug ads we see on TV, etc. Years ago there was an egg which was put into a pan and cooked. The ad was "this is your brain (the egg) and this is your brain on drugs (cooking)." Couldn't we do better than that? The ones today are no better which basically say "talk to you kids about drugs." Duh! Isn't that a no-brainer? Many years ago I watched a documentary which dealt with heroin addiction and followed an addict through withdrawal. Now that got my attention as I am sure it did for anyone with the stomach to continue watching! They say a picture is worth 1,000 words. How about a video like that being used in an ad so that kids can see a real picture of their future should they start down that path. Just my two cents.