No, there isn't.
Because as I've said, most cops have been nice to me. However, earlier this year I was also in a situation where a couple of officers blatantly abused their authority for no reason what-so-ever. I know this because I was standing right next to a law student and a paralegal who were telling the officers in question that they were violating civil rights and that they had no authority to attempt to do what they were doing.
The officers didn't even pay attention. They continued ranting, raving, and attempting to bully my small group into making a stupid mistake so they could run us in, until they realized that we were a lot smarter than they were, and they had no ability to control the situation. They made a bunch of blustering threats about watching us (funny because we were just in town for the weekend) and left.
It was a pathetic situation and both officers were just absolutely stupid, pig-headed cops that give every other good cop a bad name. All the while 4-5 other officers were sitting back not saying a word. They knew it was a stupid situation and just wanted to end it peacefully, but they wouldn't dare countermand a fellow officer while on duty, no matter how wrong he was. It was disgusting. Some of the things I heard the main guy say I swear I've seen on Reno 911 before, it was that level of absurdity.