Ah, some wires crossed here, Greg. I did indeed read your comments about formal education not being the only source of knowledge for an aspiring writer. The point I was trying to make, is that not all acting is done in theatres (which you hinted at yourself) and that not all music is presented in concert halls. Following on from that, I believe that just about any form of performing should wise up a potential writer about what should go in front of an audience.
With regard to the wimpy buskers, I will raise my hands and confess that I have seen them too - in the subways and at the soup kitchens. I guess we will always have slow learners among us. The experience certainly sharpened me up a bit though. I think those performing hours were irreplaceable in my case.