Honestly, the worst audience experience I've had was when a bunch of people at one of my college's plays kept making loud comments and reactions every time one of their friends was onstage. However, I had an odd experience with Broadway ushers back in August- I was attending an evening performance of Charlie and the Chocolate Factory when a technical failure left a few of the cast members stranded onstage when a moving scenery piece got stuck. Jackie Hoffman had made a very loud, funny comment when the SM called for a hold, so I bent down into my purse to text a friend about it before I forgot it. I was in the front mezzanine, so I guess one of the ushers could see me pull my phone out- what was odd was that she didn't walk down the stairs to tell me herself, instead she just hollered "HEY YOU! PUT AWAY YOUR PHONE!" which prompted the entire balcony and mezzanine to start staring at me. I apologized and put my phone, and then spent the rest of the hold wondering what had gone wrong with the woman sitting next to me. The oddest part of the whole experience though, was that there were at least ten people in my immediate vicinity openly texting and taking photos of the exposed set, since I guess they couldn't drop the curtain while they got things fixed. A girl to my left took FLASH PHOTOGRAPHY of the set and the crew trying to fix it, and when I turned around the usher that yelled at me was chatting with one of her friends, completely oblivious to everything else going on. I wasn't really mad, more just baffled that she chose to single me out and then refused to say anything to anyone else for the rest of the hold.
God, the almighty and all-knowing, has misplaced a cup?