Uh-oh, Not PCP

[Diphenhydramine]

So my friend told me that his friend apparently smoked weed laced with PCP. He buys weed, smokes it, and then he turns violent, and starts freaking out, like a bad trip or something (not my words, my friend's). Then his mom discovers him, gets scared, and calls 911. The cops come, and so this kid gets all paranoid and decides to show them the weed he smoked. He gets taken to a hospital, where all of his actual symptoms are described as being similiar to those of PCP. They then take the weed, test it, and he thinks it came up positive for PCP. How much would that suck, if you unintentionally took PCP?