Anti-Marijuana Ad Campaigns - Which are Real, Which are Satire?

I see some strange attempts to demonize marijuana use.  I'm not here to defend it - research does show a variety of negative side effects, as I noted in an article in Pravda several months ago... Along with many POSITIVE benefits we must acknowledge as well.  Like many other things from guns to religion - it's all about HOW you use it.

But all of the following anti-marijuana ad campaigns seem a little silly, and not all of them are trying to.

[youtube https://www.youtube.com/watch?v=7rHm8GbTHyE&w=656&h=399]