Life is a continual up-and-down roller coaster, don't make it harder on yourself by part-taking in negative acts (violence, stealing, drug abuse, animal cruelty, being hateful/vindictive). It will only accelerate your self-destruction and nothing is to be gained by that.
Keep this in mind: "If we sit by and become complacent and put our heads in the sand, we're complicit" - Shelley Morrison