Montana Meth Project has a powerful anti-Meth campaign that gives you a glimpse of how Meth (and drugs in general, really) can transform you into something awful, doing things that no normal person would do.
The most powerful shot for me is a young woman having sex for money with a blank dead look on her face and the message,"15 bucks for sex isn't normal. But on meth it is".
Other ads show a hallucinating young man picking for bugs under his skin, a guy beating an old man for money, and a friend left for dead by another meth user.
The campaign was created by Venables Bell & Partners ad agency, San Francisco, USA.
Here are more PSAs: