The rule of thumb I take is not to spoil other people's enjoyment; not applauding, leaving at the interval, that's fine. If there is something which affects the performance such as set malfunction then that too.
What isn't fine is showing that you didn't like something when other people clearly did, if anyone booed next to me when I'd enjoyed something then I would probably challenge them on it. I was ready for it for 'In the Republic of Happiness' which seemed to annoy a certain section of people but it was a great audience when I was there so I didn't get the chance.
The absolute worst of the worst is someone brandishing a mobile phone in the middle of the performance though, it isn't just an attempt to annoy it's deliberately angering others who are enthused and focused on what they are watching. The selfishness of believing that you are more important than any person in that audience. Grrr...
MS1995, on 06 May 2013 - 08:55 PM, said:
What about walking out in the bows? I have never done it myself and don't plan to, but have seen it pop up a few times in the bad behaviour thread and wondered if people thought it was acceptable way of showing displeasure at a performance?
Well it isn't very effective because it's generally presumed that it's someone trying to get their bus/train isn't it?