Romulus' pretty much summed up what I had in mind on the matter.Ozzy's a trooper.And McCartney's a trooper.And Clapton and the Stones,etc....When you reach a certain combined level of industry influence and commercial sales,you can't really step down as though you've been laboring at menial occupation,barring deeply concerning personal or medical issue Not that easy.Especially in the case of McCartney who will maintain the rather exhaulted "Ex" or "Former Beatle" label till the day he sheds his mortal coil.Sadly in the case of John Lennon,John insisted he could distance himself from his Fab past to the point where he actually believed he could just walk around in the manner of any average citizen of the world.We all know what that grossly inaccurate assessment of things led to...................