I don't think most cops realize that even seemingly small encounters that don't end up with a summons or an arrest can still traumatize the person on the receiving end of the encounter.
I personally avoid the cops whenever possible. I mind my own business and I expect them to mind theirs. There is never any valid reason to randomly stop me on the street, randomly search my backpack, or pull me over when I'm running small errands or in the middle of my daily routine. Yet it happens sometimes. All in the name of "safety" or trying to fill up the city's coffers just to make the boss happy.
Far too often, I also see their us vs. them attitude towards civilians, and their prejudices against, in their words, "third-worlders" and "groids." And they will jump at any chance to voice their displeasure whenever anyone that's a black or a Hispanic getting arrested for one thing or another. There is no presumption of innocence before guilt if you're merely accused of something and just happen to have darker skin. However, when it's another cop that's in trouble for almost anything, they almost always get the benefit of the doubt, even when they do equally stupid things. Things like joyriding on the hood of a police car before falling down, putting a guy in a deadly chokehold, harassing people filming them--I could keep going on.
I know I've said this before but NYC cops are also way too overzealous about enforcing laws against illegal cigarettes. Since we have the highest cigarette taxes in the country, it should come as no surprise that there are so many people willing to buy and sell cigs illegally. It's completely justified. I used to buy and sell steeply discounted cigarettes from co-workers back when I smoked them. Yet these cig crackdowns have molded into the Garner incident. Another old guy in another part of Staten Island, 67 years old, was also busted in an unnecessary cig raid. And more recently, we had another raid on illegal cigs in Brooklyn, which one detective took full advantage of by stealing $2,650 from the bodega owner.
And while I've never been pulled over before, if it ever happens, I know it won't be for a good reason. Our speed limit here is 25 MPH, which is ridiculously low and thus people exceed it all the time. On the highways, there are far too many troopers just lounging around looking for people just a tad above the speed limit. And if you're sitting by yourself in a parking lot just minding your own business, the cop nearest you might be looking for the slightest thing wrong. Maybe you just don't look good. Maybe you have a recently expired inspection sticker. Maybe there's a benign crack in your windshield that they feel is enough to write you a ticket for. Maybe you've parked in your spot just a minute too long.
All of this and more is why a good, reasonable and wise self-educated individual will keep saying "fuck the police" until the last police department in this country is dissolved. That's because being a cop has little to do with protecting and serving the public when something goes wrong. Police work is primarily about harassing civilians, waking up looking for blood every day, showing "activity" by means of making criminals out of innocent people, serving big business interests, and trying to turn little infractions into a big deal.