My theater is rental driven and sometimes we get really interesting clients. This one time though, we had a nightmare.
The production was a Hebrew children's musical. The show was entirely in Hebrew and the audience was full of young families with kids 5 and under. My theater does not allow food or drink except for bottled water--but you can eat in the lobby just outside the theater.
This particular client requested that the audience do not take photos/videos of the show. Also, they only sold about 30 tickets for the balcony so the client decided to not spend the extra fee for that and told us to move any balcony patrons to a few empty rows in the back of the orchestra.
When doors opened we had to deal with some kids running around that didn't want to listen to us when we asked them to stop; a couple of my coworkers asked a few of the parents to please have their child sit down, it worked for only a couple of minutes before the children started running around again. There were some parents taking out snacks for the kids and so any time one of us noticed that we'd inform them that they couldn't eat in the theater but they could eat in the lobby. A good amount of them listened to us and moved to the lobby to eat. Most tried to hide their food but we kept informing them of the policy.
The people who were moved to the orchestra from the balcony had mixed reactions. The ushers at the doors informed them that they were upgraded to the orchestra, but many people complained that the seats were worse than what they paid for, which was understandable but we couldn't open the balcony at this point.
When the show started the sounds of people eating were everywhere and far too many people were clearly taking photos/videos. My coworkers and I continuously went up and down the aisles telling people they couldn't do that (it was past the point of being nice when informing them of the rules).
As soon as we'd turn around to return to the back of the theater the person would whip out their phone/food again. Some people tried to pretend they couldn't speak English but it was obvious they just didn't want to listen to the rules. By the time intermission started my coworkers and I were so exhausted with telling nearly everyone in the audience they were breaking the rules that we just gave up. We spent the rest of the show just trying to figure out what was going on in the show (it had no suuper-titles translating the performance) and helping people return to their seats if they left for the bathroom.
When the show ended and the theater cleared out we tried our best to move as much of the garbage out into the aisles as we usually do to help our custodian. We repeatedly apologized to her because the entire place was just trashed. She ended up spending an extra three hours after the shift just cleaning up, it was horrible.
That client has never returned to the theater.