Cops just being people too is one of the things I'd like to emphasize. Yes, many of them are corrupt bastards. But at the same time, it's hard not to turn into a cynical asshole when some random self-declared "peaceful protestors" see it as their god-given right to throw bricks and whatnot in your face or just set you on fire. As with most things, stuff like this is a Tango for two.