Why should your preference impact my right to my body and what I put into it? That is downright psychotic. You mean to tell me that if someone simply takes PCP near you and does not in any way harm you, you would like for their fundamental human privileges violently stripped from them? Now, if someone takes PCP and is then a public nuisance, that should be dealt with. But it should be dealt with because they are being a public nuisance, not because you disagree with what they have put into their body.