I really want my neighbors dog. I think I'm just going to steal it.
Why would you steal their dog?
I hate dogs and I want to kill dozens of them
I know you have strong feelings towards dogs and disliking him. But this is not the way to go about doing things, I'd highly recommend you seek some help by talking to someone.
Let them get angry. I will hurt their dog and move on.
Like I said, I really think you need to talk to someone before you'll do something you'll regret. Take a step back and think about the repercussions of your actions you may do.