Moving this to a thread of its own, in case anyone who can help isn't reading the Indian City thread, where people have been so helpful.

Someone told me of an English (I think) city where there was a lot of street-fighting late at night. The lads would pour out of the dance venues pumped up after loud, fast music and lay into each other.

Some of the dance venues got together and agreed to try playing slow music for the last few sets, and the rate of violence dropped right down.

I'm looking for a reference - where was it? And is there any web reference to it?

Also looking for any similar stories, where positive and intelligent methods were used to solve a social problem. Thanks in advance, Catters.