I was at KB's when Donna Moore was appearing and a couple were talking so loudly, it ruined the performance for me. They also got up and were dancing in the aisle in front of me obviously blocking the view. I let management know and they were spoken to.
How rude and inconsiderate some people can be. Some people think it's all about them.
I would have reported this episode to management when it started to happen and let them handle the inconsiderate person.
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).