One of the problems that we face through the media attention that these artists receive is that there has been an awful lot of talk about opera and classical music being elite and being for an elitist group.
A bottle of wine begs to be shared; I have never met a miserly wine lover.
How do I know why Miles walks off the stage? Why don't you ask him? And besides, maybe we'd all like to be like Miles, and just haven't got the guts.