Perline and Goldschmidt [11] contend that the present definitions of workplace violence are simply descriptive and not based on motivation of the perpetrator.[11] Understanding the motivation underlying these crimes is important in developing preventative strategies. Perline & Goldschmidt define two types of workplace violence: 1) Object-focused workplace violence is violence that occurs to obtain some object, such as money, drugs, jewelry, etc., and 2) non-object-focused violence, which is emotionally based, and mostly associated with anger. Anger generally requires frustration and perceived injustice.