Non-violent vs. violent:  Non-violent means having your feelings hurt or your confidence challenged, or your sense of security damaged.  These are all psychological effects, sure.  Violent means having your hair pulled out, your nose or teeth broken, your face smashed in, broken bones, being hospitalized, blood, bruises, holes in your flesh from stab wounds or gunshots, being physically violated or raped, .. or your family making your funeral plans.  Do you think any of those cabin owners (who were in all likelihood not even there) had to go to the hospital or a funeral home?