How many clubs like that have you been to, Dick? I know of some people who commit all the crimes you mention but not all the time and I don't know of any club where they are in the majority. I find that,generally, the standard is high and I can live with the occasional unrehearsed non-folk song. But my experience is limited while you are much better travelled. Is it most clubs that are like the ones you describe? Half of them? 10%? Less? No need to name and shame, although it may be useful to know where to avoid. Are there clubs where most singers behave like this? Give us an idea how widespread it is.