Badly behaved audiences

An interesting piece by Mark Shenton on his blog on TheStage.Com here. Its about straight theatre rather than opera, but much chimes in. I remember a story about Jon Vickers berating the audience in Act 3 of Tristan about their coughing! And a few years ago, having tret ourselves to seats in the stalls at Covent Garden for a performance of Der Rosenkavalier, someone's phone rang and they actually answered it.