Some members of Gang Stalker often do as following:
Making some noise such as plastic bags, the perpetrators make the victims react. This is called “conditioning.”
For example, Hearing the sound of plastic bag, the victims come to feel the perpetrators maybe nearby.
“Conditioning” is well known in Psychology as the “Pavlov’s dog.”
It is “Gang Stalking” that the papetrator abuse the element of “conditioning .”