Hi, this is Gerry's wife, Rowan.
When I was in my early teens, back in the old hall in the city where I grew up, the hall had two levels, the main one, with a central platform and a second floor that was like a balcony (it was an old hall from the time when the society didn't hand out the blueprints, it later had to be remodeled). the people in the second level could participate in the meetings just fine, as long as they raised their voice (no sound equipment).
well, for like a month, we had this bum coming to the meeting every sunday and sitting in the first row of the main level. and one sunday this VERY emphatic brother that sounded pentecostal whenever he comented gave a 5 minute diatribe that sounded like a political speech from the balcony. the bum stood up, looked back and up to the balcony and started applauding and yelling "BRAVO, BRAVO". He was escorted out and never graced us again with his presence.
another time, a newcomer had a fit during the final prayer, her eyes went out and she started screaming. we all thought she had demons. I was a kid then, and it was scary.