I used to play a lot of pickup street hockey, both in Providence and somewhat in the valley. But I miss the days when it was done in tennis shoes, not inline skates. These days I play pickup basketball instead, with the same kind of chilled-out group that you describe - no fighting, we all just want a good run. And it is a shock when someone shows up and wants to argue about the calls or start shoving. We let them know real quick.