I was learning how to predict if someone will be violent with you. In his book The Gift of Fear, Gavin de Becker defines the “JACA” framework for predicting if someone will become violent. JACA stands for:
Essentially, for someone to get violent they have to
1. justify to themselves why someone deserves punishment,
2. have no alternative that can move them towards their desired goal,
3. be willing to tolerate the believed consequences that will come with using violence and
4. have the ability to deliver such violence.