Fight at the Symphony!

I just got back from a lovely performance at the Symphony, listening to Dvorak's Cello Concerto and Sibelius' Symphony No. 1. At the end, as everyone was applausing, Matt and I started to duck out to get ahead of the crowd...then we heard some yelling behind us. We turned around and saw a 30-something year old man yelling---like in-your-face-yelling---at an elderly woman with a walker. He was saying a bunch of things, but the only thing I could hear was "you're just a mean bitch!" before I exited. Man! It's one thing to see a man yelling at grandma like that...but at the symphony! And loudly enough so that everyone could hear! And while still applausing---the symphony hadn't even left the stage yet!