"Bathsalts" is also my most hated drug-propaganda term. I fucking hate it.
The thing with Pyrovalerones ala MDPV, a-PVP is that they have to be administered regulary over some (short) period of time to induce true psychotic states so if you want to create your own sex slave maniac you need some stash and a save location because they gonna lose their shit in a not sexy manner quite often as well.
I'd recommend Scopolamine for some true voodoo doll fuck slave action but it's quite hard to dose so you might need a few more subjects.
tell them it's coke/meth. Give it away for free. Tell some kids it's molly and let them snort it or eat it.
I love getting people hooked on drugs and then stealing their shit. Or feeding them dope until their brain goes flussssshhhhhh and they wig out and jump off my balcony screaming about a raid or think my old hippie friend Bill is an FBI agent especially when I start calling him agent Billiam.