For me, I do see myself hurting people in self-defense. I live in a violent city, and I'm in kind of a constant state of anxiety about that, and I'm often plagued by thoughts of being attacked. I feel a lot of anger about living in fear and insecurity, so that translates into thoughts of hurting/killing the people who I imagine are responsible. Also, I have a lot of thoughts about my dogs being hit by cars or poisoned by the neighbors, and of me being in a car accident, etc. I don't want to be thinking these things, because they're scary and hurtful and leave me feeling very upset, but it's like my brain is hardwired to think such things. I'm sure they're triggered by my anxiety in the first place, and the thoughts just add more fuel.