A friend of mine had neighbors having a party with loud music during a weeknight. He called the cops twice. Twice the cops showed up, asked the neighbors to keep it down. Twice the neighbors quieted down until the cops left, and then turned the music back up.

So my friend called the cops again (on 911 which is, of course, audio recorded), and went on at length about how noisy the party was, how stressed out he was getting (he had only a few hours before he got up for an early morning working shift), and how he was having trouble controlling the urge to pick up a baseball bat and visit the neighbors.

The wording was critical --- he didn't threathen to do anything, he just very carefully talked about how the stress of the situation was making it tough for him to not resort to violence. Within about 5 minutes, the cops walked into the party, confiscated the stereo and dispersed the crowd.