Paul Schofield said something like, 'If I'm not acting in a play, I don't really exist.' Those weren't the exact words, but he meant it's only when I'm acting in a play that I've got something to say about the world. And then why should I talk, when people can come to see it?
When people ask me really stupid questions or get it really wrong, I feel embarrassed for them. I don't really feel angry at them.