It's what they give people with certain mental illnesses mostly for emergency purposes now. I take more then abit of a offense to you saying they give it to crazy people since i have known people who have had to take it for various mental illnesses and they where certainly not "crazy".
Anyway it's a very old, very potent typical anti-psychotic with a hell of alot of side effects and can cause those nasty movement disorders more so then atypical anti-psychotics such as seroquel, zyprexa, etc or even some of the older typical anti-psychotics.
So unless you actually need to be on haloperidol don't go near it. It is not the least bit recreational and is the opposite of euphoria in it's effects.