True, a lot of cops do want to serve and protect. There are also many bad apples. I have experienced both types of Police officers. I had a cop help me when I was stranded on the side of the road. He even offered to help me fix my vehicle road side.
I had some cracked out cops enter my house with out a warrant, harass my room mates and they made me smash my pretty bong. The cops had bulging blood shot wide opened eyes and were acting like crack heads. I wish I had surveillance. This is the kind of stuff that makes me suspicious of people with authority.
Denver also has a very strict pit bull ban. It's like a dog holocaust. This link is what breed bans look like. Thankfully it's not the entire state. Pit Bulls are adoptable dogs where I live. It's horrible to look at.