Why do people minding thier own business in life, dont break the law, that fall victim to a person?

to a psychopathic apt. neighbor, made to endure their sick harment, bodily harm by their dog, fa sly calling the police and the normal person gets treated as if they are the one that is the nuisance. Same story by police, when mind you they have this psychopaths extensive criminal record just a call away, do nothing. Nothing. Then just dare you to react. React in the way dumb people only understand .Beat them to a pulp. But no, then the innocent person is hauled off to jail with charges of ault, fines to pay, probation to endure, charges showing on your record. Dont get it, do any of you.