Sitting outside a cafe and some guitar wanker appears. I spot him and know what's coming next. He starts singing and playing. They almost always do. WTF is it about acoustic guitar players that makes them think that everyone in the general vicinity wants to hear them? You don't tend to get spontaneous unnecessary public performances by flautists or violinists, or do you? I don't count street performers in this btw. Just the guitar wankers who start randomly playing in cafes,restaurants and other public spaces where people are usually paying to be.