What about the story that Ozzy Osbourne (I think) once snorted a line of ants in the hope of getting high because Keith Richards had urinated on them. I'll have to try to track down a link to where I saw that story. Consider this one unconfirmed for now.
Three things you may not have known; Human ashes are called cremains. Keith Richards has been trepanned. "Lunatics, idiots, deaf and dumb" people are barred from standing for election under laws dating from 1766 which still apply. So Keith Richards, MP, is unlikely. Sources: BBC