I miss NYC the way it used to be, everyone screaming at each other. Now everyone's too polite. We've all turned into Methodists or something...
In the modern era, the worst thing you can do is hurt someone's feelings. So screaming goes out the window.
Unless you are screaming at a conservative - then hurting their feelings is ok and to be encouraged. :-)
Visit Farmer's Market in West L.A. It may have changed, though - I haven't been there in 20 years.