If you've had good gin on a hot day in Southern California with the people you love, you forget Nebraska. The two things cannot coexist. The stronger, better of the two wins.
In Boston where community policing is so important, they don't necessarily have to like each other, but they know each other. The cops in Boston make it their business to get out of their vehicles, to engage the public, to walk around the neighborhoods. They live in the community that they police. And I think these things help.