Despite what you people might think, I am not on drugs - I loathe them. If you need substances to enter a stage of psychosis, you aren't a true psychopath :-P
How do we get rid of these festering aemoba brained byproducts of animal-buggery? Perhaps they'd be so desperate for the substances in each others bloodstreams that they'd resort to cannibalistic violence and kill each other.
Or we could deal with them another way, BUT HOW?