A couple of weeks ago when I was in New York, I went to see A View From the Bridge at the Lyceum Theatre and I had seats on stage. As you went up the stairs to the stage, you were met by two ushers. The first one told the people coming up that no photography was allowed and to please switch off their phones now. Then they moved to the next usher just a couple of feet away who was going to show them their seats and give them their Playbill. I was sitting in the middle of the front row next to the aisle and so was next to the usher and as soon as the person went up to her, she would repeat what the first usher said and then politely asked if their phones were off and that she needed to check that their phones were off before they could be seated. Apparently, a phone from someone sitting on the stage seats rang during the climactic end scene a week before and ruined the moment.
Anyway, the usher pretty much got most people happily showing them their phones being off or else they would gladly turn them off in front of her. However, there were quite a lot of people with so much attitude who would say "I'll turn it off before the show starts" or "I'll turn it off when I get to my seat" and the usher would repeat that she would only seat them IF they turn off their phones in front of her prior to going to their seat and show her the phone. A couple of people told her that they had their phones off and when she asked to see the phones, they would go, "Oh, no, I swore I turned it off!" A gentleman in his 40s with his father who was probably in his 70s came up and went through the first usher and then reached the second usher. The second usher asked if their phones were off, the man rudely said "Yes, our phones are off! I turned them off when the first usher asked me to!" and then started cursing. The usher insisted to see their phones and the first man pushed his phone towards her face and said, "See? It's off!" and then the usher asked his father to show his phone and he got it out and showed her and it was still on! And he goes, "I don't know how to turn it off." The son apologised for his father and then as the usher showed him his seats and gave him his Playbill, he apologised to her and said that it was a good thing that she was checking.
I thought this usher was really good and I can't believe people were just rude to her repeatedly. All she was trying to do was make sure that the audience got the best possible experience in that theatre. I don't understand what the problem was that they couldn't turn off their phones right then. The good thing about this show was that there was no intermission, but if this show had an intermission and they had to keep checking the phones again, it would just be a real big hassle.