The other thing we've had recently was at an outdoor performance of a Midsummer Night's Dream. Despite leaving home in plenty of time there was a huge problem on the Motorway so we dashed in with minutes to spare. Staff were actually seating people in rows, unusually, so we set up where we were put, but loads of people had been caught in the queues and continued to come in behind us.
A family of adults arrived just after us and were chatting away as they set up their chairs just along from us in the same row. By this time the cast had come on and were singing. These people continued to chat, with people turning round and glaring at them. Then the man fell through his chair, and sat there looking stunned. Woman started to laugh at him and he was asking her to pull him out, no attempt at being quiet.
Someone from behind us stomped through to haul him up, then they carried on rearranging themselves, still chatting away. Eventually a man about 3 rows in front of us turned round and bellowed "will you shut up!". People applauded him, and the family looked a bit stunned and didn't make another sound.
We managed to watch the rest of the first half in peace, but the people immediately behind us were wearing oilcloth coats that they decided to keep putting on and taking off throughout the second half, which was annoying. Two other families with very small children were having some sort of joint picnic and letting the children run around and squeal at the back of the field, but we could still hear them.
At a separate outdoor theatre it was raining (not hard), and all the people who'd got there early had huge umbrellas up. The cast came out and said if people had hoods could they use them instead as the umbrellas were blocking the view, and if they couldn't do that could they move to the back. Not one did.They were spread all across in front of the stage so there wasn't an area you could move to where you could see.
The umbrella family sitting dead centre also had a toddler in a pushchair who got bored after the first 20 minutes and started crying, shouting and so on, so not only could we not see, we couldn't hear either. It was a play, with no singing, just speaking. No attempt to sort him out and the staff didn't intervene. We won't be bothering with live events at that particular venue again.
I honestly feel this has been worse this year than ever before. It costs such a lot to go to any sort of event and it's always full of these idiots thinking they are at home.