To further Philly audiences' bad reputation:
I attended a recital by Renee Fleming at the Kimmel Center. Right at the beginning of her encore of Marietta's Lied from Die Tote Stadt a cell phone rang. Not uncommon, but in this instance, the culprit was seated in the seats behind the stage, in full view of the entire audience who witnessed her answer the call and proceed to keep talking on her way up the steps and out of the theatre.
This story takes the cake though (WARNING - NOT FOR THE SQUEAMISH):
Several years ago I attended a performance of Show Boat at the Media Theatre (a suburb of Philly). The woman seated to my right and her party enter just as the lights are going down. We reach "Can't Help Loving that Man of Mine" in the first act and the woman next to me leans forward and hikes up her skirt. The next thing I hear is the emission of bodily fluid. I was astounded to think that this woman was peeing in her seat, when I realized she wasn't peeing at all. She was vomiting. While I was horrified, this did not phase her in the least. She completed the task at hand and procede to tap her foot in her mess while the odor permeated the theatre. As soon as intermission hit (the longest act of my LIFE), my friends and I made a bee-line for the house manager who would not believe what we had to say. Finally he rolled his eyes and checked it out. He then proceeded to ask this woman and her party to leave (turns out they were all inebriated).
After that experience, nothing surprises me in regards to audience behavior.
"When you're a gay man, you have to feel good about yourself when a urologist says, "Yeah. I pick you". - Happy Endings