Is this a real thing? I can somehow understand (forgive me) the kinky/ deviant fantasy behind it- but as an actual "method", stabbing people with a drugged syringe in the middle of a crowd?? Sounds more like mass delusion/ psychosis, from both sides (the perpetrators, who won't ever get any of the "desired effects", and some of the victims, who might just become convinced they've been pricked because they've read it in the news).
Or someone has different info?