Don't listen to these people, most of them don't know what it even is. Doing PCP ain't gonna give you mental problems in a few years(LOL). PCP is just an incredibly mind altering drug, sometimes stronger than lsd so if you are emotionally or mentally unstable then stay the fuck away from it. If you wanna do it just sprinkle a little bit on the top of your weed and you aint gonna be tripping too hard. If you really wanna get fucked up though take a pure pcp hit, you'll be in another world for hours, but make sure you have someone who ain't on it w/ you b/c it can turn on you in the blink of an eye. Oh and stay away from public places.