I missed out Hyoscine also know as scopolamine administered via a small pin worn as a ring, kept on the inside of the palm. A pad on the shoulders, a pad on the back, to catch you by the elbow is all it takes to introduce the drug. A small prick from the pin on that ring is all that you feel as you fall under the control of this drug.
It works better if you are first subjected to harassment, and is mentally weak. Behavioural changes afterwards are very common among children exposed to this drug, the Devil's Breath.
Do I have enough justifications? Not quite...